General Park Rules
Permits & Parking
- Valid parking permit required
- Park only in designated areas; no off-road driving
- Accessible parking requires a valid disability placard
- No fake, copied, or forged permits
Permits: Full details (official wording)
PROHIBITED:
- To enter or occupy the recreation areas to which these regulations apply where valid recreation permits or utility permits are required, without such a permit.
Exception: Any penalty for parking a vehicle in such recreation areas shall be controlled by the regulations and fines as outlined in Section C. - To fail to display recreation permits on vehicles as described on the permits.
Dealer vehicles are exempt. Failure to comply will result in confiscation and permanent loss of permit. - To knowingly make a false statement or give false information in connection with purchasing or displaying a park permit.
- To copy, counterfeit, or fraudulently reproduce a Larimer County Department of Natural Resources park permit, or to display a copied, counterfeited, or fraudulently reproduced Larimer County Department of Natural Resources park permit.
Driving
- Valid driver’s license required; vehicles must be registered
- No speeding or careless driving
- Don’t tow people in boats or trailers on roads (boat ramps only)
Vehicles: Full details (official wording)
PROHIBITED:
- To park a vehicle within the recreation areas to which these regulations apply without a properly displayed, valid permit.
- To operate or park vehicles on other than established roads and parking areas.
- In areas to which these regulations apply, to operate or allow the operation of an unregistered/unplated vehicle or motorcycle or to operate or allow operation of any vehicle unless the operator has a valid driver's license or to operate or allow operation of any motorcycle unless the
operator has a valid driver’s license and motorcycle endorsement. - To park vehicles or trailers in areas posted "no parking" or "no trailer parking" or in a manner which obstructs normal traffic flow.
- To operate, or allow another to operate, a motorized vehicle in areas to which these regulations apply, in a careless manner (as defined by §42-4-1402, C.R.S. 2002 and as may be amended).
- To operate a vehicle in excess of the posted speed limits.
- To park vehicles in areas posted for disabled parking without proper disability identification.
- To fail to comply with a traffic control device while operating a motor vehicle.
- To operate, or allow another to operate/manipulate, a bicycle, horse or any other non- motorized form of transportation in areas to which these regulations apply in a careless manner.
- To operate, or allow another to operate, a dirt bike, ATV, Go-Ped, pocket bike, or similar device.
- To operate or allow another to operate a vehicle towing a boat or jet ski trailer while passengers are occupying any portion of the boat, jet ski, or trailer.
Applies to any vehicle and trailer on any Larimer County Department of Natural Resources road other than on an established boat ramp.
Hours & Access
- Day-use areas: 6 AM to sunset (unless posted otherwise)
- Stay out of closed, protected, or posted areas
- Stay off ice at all Larimer County reservoirs
Use Restriction: Full details (official wording)
PROHIBITED:
- To occupy areas that are designated by the Larimer County Department of Natural Resources as day use only, at times outside of allowed hours.
Areas designated for day use only will be posted as such and hours of use, unless otherwise posted, shall be from 6:00 am until sunset. Visitors actively engaged in fishing, and in compliance with Section Q, are exempt. - To enter, use, free graze, trespass upon, or occupy any areas to which these regulations apply which are posted, or as directed by a Larimer County Department of Natural Resources employee, against such use.
- To park in excess of the posted time limit.
- To hike, bike, or ride a horse in a non-designated area or trail where use is prohibited.
- To construct, place or maintain any kind of off-road, trail, structure, fence (electrical or otherwise), enclosure, portable corral, geocache, communication equipment, or other improvement without prior permission.
- To boulder or rock climb in non-designated areas.
- To enter, use or occupy Larimer County Department of Natural Resources properties, or any portion thereof, during the time such areas or any portions
thereof, are designated as sensitive areas, seasonal closures, wildlife protection closures, refuges, no-public-access areas, or any other protected areas. - To throw, discharge or launch any type of missile, rocket-propelled device, or other self-propelled projectile on Larimer County Natural Resources areas.
Exception: Spearfishing, archery and gigging for carp or suckers in accordance with Colorado Parks and Wildlife (CPW) regulations. - To operate or give permission to operate any remote-controlled boats, cars, planes, helicopters, drones, unmanned aircraft systems, or any self-powered vehicles, electric bikes on non-designated trails, gliders, or launching or landing any flight apparatus hot air balloons, paragliders, paramotors, or any similar flight device.
- To operate any Class (as defined in Section Z) of electric powered bicycle (e- bike) on a natural surface trail or operate a Class III e-bike on a hard surface trail.
On natural surface trails fully located within U.S. Bureau of Reclamation property, Class I and II e-bikes are exempt and may be used where bicycles are otherwise permitted.
On natural surface trails within all other Parks and Open spaces, Class I and II e- bikes, being operated by an individual with a mobility disability, are exempt and may be used where bicycles are otherwise permitted. - To fail to abide by any sign posted by the Larimer County Department of Natural Resources or their designee.
- To walk, or operate a vehicle on the ice at Carter Lake, Flatiron Reservoir, Pinewood Reservoir or Horsetooth Reservoir.
Protecting the Park
- Don’t remove, damage, or deface park property, signs, or vegetation
- Leave natural items or artifacts where you find them (rocks, flowers, plants, etc.)
- Don’t disturb wildlife
- Damages over $100 may result in court-ordered costs
Destruction of Public Property: Full details (official wording)
PROHIBITED:
- To remove, destroy, mutilate, modify, or deface any structure, campsite amenity, water, control device, fence, gate, notice, sign, survey or section
marker, tree, shrub, or other plant or vegetation, or any other item of public property. FINE $100.00, unless damage exceeds $100.00, then amount to be assessed by the Court. - To take, collect, gather, or possess any animal, vegetation, rock, wood, or any other object
- To alter, damage, destroy, remove, or in any way vandalize wildlife habitat features, including but not limited to animal dens, burrows, dwellings, nests, or nesting areas.
- To take, gather, remove, possess, alter, sell, or destroy any cultural or historical artifact. May incur additional amounts to be assessed by the Court.
- To metal detect or engage in similar activities
Conduct
- No threats, fighting, offensive gestures, or abusive language
- Keep noise at reasonable levels
- No public nudity
- Stop when signaled by a ranger; don’t interfere or give false information
Disorderly Conduct & Public Indecency: Full details (official wording)
PROHIBITED:
- To make a coarse and obviously offensive utterance, gesture or display publicly, knowingly, or recklessly, or abuse or threaten a person in an obviously offensive manner or make unreasonable noise or fight with another (except in an amateur or professional contest of athletic skill), or discharge or display a firearm.
FINE $100, or amount to be assessed by the Court. - To knowingly expose one's genitals, pubic area, or buttocks with less than a full opaque covering, or the showing of the female breast with less than a fully opaque covering of any portion thereof below the top of the areola.
Alcohol & Controlled Substances
- No alcohol in day-use areas
- No one under 21 may possess alcohol
- No public consumption of marijuana, regardless of age. May possess it if legal under Colorado law
Alcohol & Controlled Substances: Full details (official wording)
PROHIBITED:
- To possess and/or consume alcoholic beverages (including alcohol poured into a different container) in any Larimer County Department of Natural Resources day use area. Alcohol is allowed in overnight camp sites and alcohol may be possessed and consumed onboard a vessel.
- For anyone under twenty-one (21) years of age to possess or consume an alcoholic beverage or marijuana or marijuana byproduct
- To consume marijuana in a public place
- To possess a keg containing or having contained an alcoholic beverage
- To possess drug paraphernalia and know or reasonably should know that the drug paraphernalia could be used under circumstances in violation of the laws of the State of Colorado.
Firearms & Weapons
- No displaying or firing firearms
- No displaying or using weapons (BB guns, bows, knives, or other deadly weapons)
- Hunting exception: Weapons may be carried unloaded/sheathed during direct travel to approved hunting areas with valid license
Firearms & Weapons: Full details (official wording)
PROHIBITED:
- To publicly display or discharge any firearm, as defined in C.R.S. § 18-l- 901(3)(h), except such firearm may be carried, unloaded, if in continuous non-stop transit to an approved and legal hunting area, if the carrier has a valid hunting license for that hunting unit on their person.
- To publicly display, carry on their person, use or allow the use of weapons of any kind, including but not limited to B.B. guns, pellet guns, longbows or crossbows, or other deadly weapons, as defined in C.R.S. § 18-l-901(3)(e), excluding firearms, except such weapon may be carried, unloaded or sheathed, if in continuous, non-stop transit to an approved and legal hunting area, if the carrier has a valid hunting license for that hunting unit on their person.
Also excludes equipment for spearfishing, archery and gigging for carp or suckers if in accordance with CPW regulations. This regulation does not intend to constrict the rights given to current concealed handgun permit holders through CRS 18-12-214, who have their permits in their possession as required by CRS 18-12-204.
Fireworks
- No fireworks or explosives; items will be confiscated
Fireworks: Full details (official wording)
PROHIBITED:
- To possess or discharge any types of fireworks, sparklers, etc., or explosive devices.
Failure to comply may result in confiscation and permanent loss.
Unattended Property
- Items should not be left unattended for more than 24 hours unless they’re in a paid campsite.
Any food or perishable items that could attract wildlife must be secured and may be removed if they create a safety concern
Unattended Property: Full details (official wording)
PROHIBITED:
- To leave property unattended in excess of twenty-four (24) hours unless left in a paid campsite.
Commercial Use
- No commercial activities without written approval from LCDNR
- Commercial use includes any paid activity, such as rentals, classes, events, or photography
- Applies even if payment happens elsewhere but the activity takes place on public lands or waters
- Selling or reselling campsites or other services is not allowed
Special Event Permit Application
Film and Photography Permit Application
Commercial Use: Full details (official wording)
PROHIBITED:
- To use public areas or public waters for any commercial purpose whatsoever without express written consent
For written consent: See Larimer County Department of Natural Resources area manager. Commercial use may include, but is not limited to, any boat rentals, photography, classes, events or any exchange of goods or services in which a business or individual receives any financial compensation. This includes transactions that occur in another location, but with the intent to be used or occur on public areas or public waters. - To sell a campsite or other service
Eluding & Interference
- Stop when signaled by a park ranger (visual or audible)
- Don’t try to avoid or flee from a ranger
- Don’t interfere with rangers or county staff while they’re doing their jobs
- Don’t give false or misleading information
Eluding & Interference: Full details (official wording)
PROHIBITED:
- To elude or attempt to elude a park ranger after having received a visual or audible signal to stop.
- To interfere or attempt to interfere, physically or verbally, with any Larimer County Park Ranger, or other Larimer County employee while in performance of their duties on water or lands or to give false or misleading information with the intent to mislead said person in the performance of their duties.
Accessibility
- Service animals welcome at all properties; keep leashed and pick up waste
- Power-driven mobility devices (PDMDs) permitted on all properties for those who need them
- Accessible parking and campsites available; valid disability ID required
- Discounted annual permits available; Disabled Veterans and Purple Heart licensees enter FREE
For accessible trail maps, accommodations, or to reserve accessible campsites, visit larimer.gov/naturalresources/parks/ada-information
or call 970-619-4570.
Camping
Camping: Full details (official wording)
PROHIBITED:
- To camp in non-designated areas.
A designated campsite has a fire grate, picnic table, parking spot, and campsite marker post. Tents and any other camping units must be located within twenty- five (25) feet of the designated campsite marker post. A designated boat-in campsite must have a campsite marker post. - To camp for more than fourteen (14) days in park areas and or waters in a 30-day period.
- To dig, level ground, or otherwise alter any campsite or public use area.
- To create excessive or unreasonable noise or light, that disrupts the peace, quiet, or safety of other park users or wildlife. This includes loud devices, failure to observe quiet hours (10:00 P.M. to 6:00 A.M.), disruptive pets, or lighting that disturbs darkness or disturbs others. A complaint, referral or other notice to authorities regarding noise or light from another park user shall be prima facie evidence of a violation.
- To exceed the capacity of any cabin, campsite or other reservable unit including guests.
Campsite capacity is defined as: one (I) camping unit and two (2) tents. If no camping units are utilized, campsite capacity is limited to four (4). In no case shall the campsite capacity exceed eight (8) people. Camping unit is defined as any wheeled unit used to sleep in such as a trailer, RV, pop-up camper, etc. A rooftop tent is considered a tent. - To camp in an accessible campsite without displaying a valid disability placard or license plate.
Exception: When all campsites are being utilized and the accessible site is the only remaining site available in a camping area, it may be occupied by any non- disabled visitor with the understanding that the non-disabled visitor may be asked to relocate to a nearby vacant site the following day if the posted site is the only usable site available for an arriving disabled visitor. - To alter a campsite in any fashion without prior written approval from a Larimer County Ranger.
- To smoke, have an open flame, cook with an open flame or have more than 2 pets inside any cabin or tipi. Use of the provided cook stove in Hermit Park cabins is allowed.
- For anyone under the age of eighteen (18) years to camp without adult supervision or written parental permission.
- To exceed two (2) horses per corral in Hermit Park.
- To exceed the checkout time of any campsite, cabin, tipi or reservable amenity
- To camp in a designated campsite, cabin or tipi without a valid camping reservation and valid vehicle pass.
General Rules
- Camp only in designated areas
- Valid reservation and vehicle pass required; No re-selling of reservations
- 14-day limit per 30-day period
- Check-out: 11 AM
- Check-in: Noon for campgrounds,
3 PM for cabins - No digging, leveling, or changing campsites or public areas
- Campers under 18 years old need adult supervision or written permission
Capacity
- Max 8 adults per site
- 1 camping unit + 2 tents,
OR up to 4 tents (no unit) - Camping units = wheeled sleeping units (trailers, RVs); rooftop tents count as tents
Quiet Hours
- 10 PM–6 AM: no loud noise or bright lights that disturb others or wildlife
Cabins
- No smoking or open flames
- No campstove indoors except for provided stoves at Hermit Park
Fires
- Use designated metal grills only; don’t move them
- Never leave fires unattended
- Bring your own firewood.
Don’t collect from the park - Follow all fire bans and restrictions
- Keep fires under control at all times
- Don’t burn trash
Fires: Full details (official wording)
PROHIBITED:
- To build a fire outside of metal grills provided for that purpose, or to relocate grills to another area.
- To leave any fire unattended for any amount of time.
- To collect firewood on or from any area administered by Larimer County.
- To violate any portion of a fire ban or fire restriction as prescribed by the Larimer County Commissioners or the State of Colorado.
- To allow a fire to burn in a careless manner.
Food Storage
- Keep food in hard-sided locked vehicles, bear-proof lockers, or hard-sided camping units
- NOT hard-sided: tents, pop-ups, soft-sided campers, car-top carriers, fabric camper shells
Sanitation
- No littering; dispose of waste properly
- Don’t wash personal items at drinking hydrants
- Use restrooms; no public urination or defecation
Sanitation: Full details (official wording)
PROHIBITED:
- To litter or improperly dispose of waste, including fish or animal remains, pet waste, human waste, chemicals, needles, food, or trash. It is also prohibited to clean fish, animals, clothing, or household items, or to bathe at drinking water hydrants.
- To use refuse containers provided for public use to dump household or commercial refuse brought from outside, to areas to which these regulations apply.
- To possess or use glass containers
- To refuel a vessel while on the water or shoreline, unless at a commercial fueling facility.
- At any campsite or cabin campsite, to fail to store food, beverages, toiletries, trash or any other type of wildlife attractant in a hard-sided, locked vehicle, bear-proof locker provided on site, or in a camping unit that is constructed of solid, non-pliable material.
A hard-sided vehicle is defined as the trunk of an automobile, the cab of a pickup truck and/or the interior of a motor home, fifth wheel, camping trailer or pickup camper. A hard-sided vehicle does not include any type of tent, pop-up camper or pickup camper with nylon, canvas or other pliable material, car top carriers or camper shells on the back of pickup trucks. - To leave human excrement on lands or in waters or to urinate in public.
- To leave or burn trash, plastic, metal or any type of refuse within a campfire grate or anywhere on land or waters.
Day Use & Trails
Hours
- Day-use areas: 6 AM to sunset
(unless posted otherwise)
Trails
- Hike, bike, and ride horses only on designated trails
- Climb only in designated areas
- No building structures, trails, or placing geocaches without approval
Vehicles on Trails
- Ride bikes, horses, and other non-motorized transport safely
- No dirt bikes, ATVs, pocket bikes, or similar vehicles
E-Bikes
- No e-bikes on soft-surface trails
- No Class III e-bikes on hard-surface trails
- Exception: At USBR properties and those with mobility needs where bikes are allowed
Equipment & Devices
- No drones, RC devices, or flight equipment without written approval
- No launching projectiles (spearfishing, archery, and gigging for carp/suckers allowed)
COTREX: Current Trail Information
Pets
Pets & Horses: Full details (official wording)
PROHIBITED:
- To bring or allow dogs or other animals, not under physical control, on areas to which these regulations apply.
"Physical Control" specifically does NOT mean eye or voice command or electronic devices. Where a leash is used, such leash may not exceed ten (10) feet in length. - To allow dogs or other pets to create a nuisance, noise, or disturbance.
- To allow horses in camp sites or picnic sites that are not designated for equestrian camping.
- To knowingly or negligently allow or direct a dog one owns, or under one's control, to harass wildlife, whether or not such wildlife is injured by such dog.
- To tie or chain an animal to a tree, shrub or corral which could result in damage, or to allow a tie or chain to become entangled with a tree or shrub, or to use a high line tether, hobbling or picketing to control a horse.
- To leave a pet unattended for any amount of time including within a campsite, cabin, tipi or reservable amenity
- To allow a dog to remain in the Larimer County Department of Natural Resources System once notified that such dog has been deemed aggressive or vicious by any Larimer County Ranger; or to bring a dog previously deemed aggressive or vicious by any Larimer County Ranger or court or governmental agency into the Larimer County Department of Natural Resources System.
Such regulations shall apply to any person causing or allowing such a dog in the Larimer County Department of Natural Resources System and shall not be limited to the registered owner. - To knowingly have in a Natural Resources area a dog that has bitten, scratched, pulled down, or in any way injured a person or other domestic animal.
Such regulations shall apply to any person causing or allowing such a dog in the Larimer County Department of Natural Resources System and shall not be limited to the registered owner. - To allow a dog or other animal at Prairie Ridge Natural Area, Rim Rock Open Space or Red Mountain Open Space.
- Keep pets on a leash (under 10 feet) at all times
- Control noisy or disruptive pets
- Never leave pets unattended
- Don’t let pets chase or disturb wildlife, other visitors
- Tether properly; don’t damage trees or park features
- Aggressive dogs not allowed after notice from staff
- Dogs that injure people or other pets are not allowed
- No pets on swim beaches—waste contaminates the water
No Pets Allowed:
- Red Mountain Open Space
- Prairie Ridge Natural Area
- Rim Rock Open Space
Horses
Pets & Horses: Full details (official wording)
PROHIBITED:
- To bring or allow dogs or other animals, not under physical control, on areas to which these regulations apply.
"Physical Control" specifically does NOT mean eye or voice command or electronic devices. Where a leash is used, such leash may not exceed ten (10) feet in length. - To allow dogs or other pets to create a nuisance, noise, or disturbance.
- To allow horses in camp sites or picnic sites that are not designated for equestrian camping.
- To knowingly or negligently allow or direct a dog one owns, or under one's control, to harass wildlife, whether or not such wildlife is injured by such dog.
- To tie or chain an animal to a tree, shrub or corral which could result in damage, or to allow a tie or chain to become entangled with a tree or shrub, or to use a high line tether, hobbling or picketing to control a horse.
- To leave a pet unattended for any amount of time including within a campsite, cabin, tipi or reservable amenity
- To allow a dog to remain in the Larimer County Department of Natural Resources System once notified that such dog has been deemed aggressive or vicious by any Larimer County Ranger; or to bring a dog previously deemed aggressive or vicious by any Larimer County Ranger or court or governmental agency into the Larimer County Department of Natural Resources System.
Such regulations shall apply to any person causing or allowing such a dog in the Larimer County Department of Natural Resources System and shall not be limited to the registered owner. - To knowingly have in a Natural Resources area a dog that has bitten, scratched, pulled down, or in any way injured a person or other domestic animal.
Such regulations shall apply to any person causing or allowing such a dog in the Larimer County Department of Natural Resources System and shall not be limited to the registered owner. - To allow a dog or other animal at Prairie Ridge Natural Area, Rim Rock Open Space or Red Mountain Open Space.
- Horses allowed only in equestrian areas
- Hermit Park: Max two (2) horses per corral
Hunting & Trapping
All CPW regulations apply
Hunting & Trapping: Full details (official wording)
PROHIBITED:
- To engage in any hunting activity without a valid hunting license, authorization, and special access hunting permit.
- To engage in any trapping activity. Excludes: trapping of crayfish per CPW regulations.
- To unlawfully harass or disturb wildlife.
- To refuse inspection of personal identification, hunting or fishing license, or firearm by a park ranger.
- To engage in a hunting activity in any park or open space unless such area has specifically been designated for hunting.
- To engage in hunting activity in a designated hunting area that has been closed or outside of legal hunting hours.
- To hunt in a careless manner, discharge a firearm in a careless manner, use a prohibited weapon while hunting, and/or engage in a hunting activity while under the influence of drugs or alcohol.
- To have a loaded firearm in a vehicle.
- To intentionally interfere with lawful hunting or fishing activities.
- To engage in a hunting activity without required daylight fluorescent orange garments.
- Failure to attach carcass tag immediately upon kill.
- To have a loaded firearm while transporting across a Larimer County Natural Resources area.
- To engage in a hunting activity within one hundred fifty (150) feet of any structure or trailhead.
- To intentionally feed or attempt to feed wildlife.
- To harass or disturb cattle or other livestock. Plus additional amount to be assessed by the Court if livestock is damaged.
- To allow cattle or other livestock onto Larimer County Department of Natural Resources property or into grazing pastures not in accordance with approved grazing leases. Plus additional amount to be assessed by the Court.
- To track or hunt any animal injured during legal hunting times onto Larimer County Department of Natural Resources property without prior approval.
Where to Hunt
- Hunt only in designated areas during legal hours
- Get permission before tracking wounded game
Wildlife & Livestock
- Don’t feed, harass, or disturb wildlife or livestock
- No unauthorized grazing
- Don’t interfere with lawful hunting or fishing
Fishing
All CPW regulations apply
Fishing: Full details (official wording)
PROHIBITED:
- To ice fish on any body of water.
- To fish from the spillway structure or the inlet channel within two hundred (200) feet of the power plant water gate at Flatiron Reservoir, or at the inlet area of Horsetooth Reservoir from March 15 through May 31, as posted, or at any other restricted fishing areas.
- To fish in any designated swimming area.
- To fish without a proper and valid fishing license as required by CPW.
- To fish with more than one (1) rod and line without an additional rod stamp as required by the CPW or to fish with more than two (2) rods.
- To have in possession over the legal bag or possession limit of a fish species as determined by CPW regulations.
- To have in possession a fish that did not meet the length requirement as determined by CPW regulations.
- To fish with an unattended rod(s).
- To engage in spearfishing, archery, or gigging for species other than carp or suckers except in accordance with CPW regulations.
- To fish using live bait where prohibited per CPW regulations.
Requirements
- Valid fishing license required
- Use only the number of rods your license allows
- Don’t leave rods unattended
Where & When
- Fish only in open areas during allowed times
- No fishing in swimming areas
- No ice fishing at any Larimer County water body
- Active fishing exempt from day-use hour restrictions
Catch Limits
- Follow bag, possession, and size limits
- Follow spearfishing and gigging rules
- No prohibited live bait
Paddleboarding (SUP)
Paddleboards are classified as vessels. Inflatable paddleboards are exempt from the 2+ air chamber rule that applies to other inflatables.
Requirements
- Life jacket or personal flotation device (PFD) must be on board for each person, it recommended to wear it at all times.
- Children age 12 and younger must wear a life jacket at all times while on the water
- A sound-producing device, such as a whistle, must be carried
- It is recommended to clearly and legibly label the paddle board with your name and address
- Any paddle board with an electric motor must be registered with the State of Colorado
Where to Paddle
- Launch only at approved areas during posted hours
- Stay out of swimming areas and main channels
- Keep at least 150 feet from ramps, docks, buoys, dams, structures, vessels, swimmers, and people fishing
Night Paddling
- Carry a white light (flashlight) that can be used to signal and help avoid collisions
Navigation
- Motorized vessels must yield to you, but stay alert
- Travel counterclockwise at Carter Lake Reservoir and Horsetooth Reservoir
- Follow all buoy designations
Protect Our Waters
- Clean, drain, and dry your paddleboard and gear after every use
Swimming
Swimming: Full details (official wording)
PROHIBITED:
- To swim or allow to swim in a non-designated area. Swimming is only permitted in no-wake zones, and within 50 feet of a shoreline. Swimming is strictly prohibited in the main channel of any reservoir, as well as within 150 feet of boat ramps, docks, buoys, dams, structures, or any other area where swimming is specifically posted as prohibited. Exceptions may apply for swimmers that are accompanied by swim buoys, spotters, and/or support vessels
- To jump or dive from land, object or structure into water.
- To knowingly or negligently allow dogs or other animals to enter the swimming areas (land or water).
- To occupy the swim beach while in possession of an alcoholic beverage or while under the influence of alcohol, a narcotic drug, or any other substance.
- To engage in careless or reckless activities at the swim area, on land or in water, which creates a risk of injury or inconvenience to another.
- To allow any child under the age of thirteen (13) to swim or engage in any water recreation without providing adequate adult supervision.
Where to Swim
- Swim only in designated areas: no-wake zones within 50 feet of shore
- No swimming: main channels, within 150 feet of ramps/docks/buoys/dams/structures, or posted areas
- Exceptions may apply with swim buoys, spotters, or support vessels
Safety
- No jumping or diving from land or structures
- No reckless behavior that risks injury
- No alcohol, drugs, or swimming under the influence
- Children under 13 must have adult supervision
Other
- No pets on swim beaches, waste contaminates the water
- No glass containers where posted
- No prohibited live bait
Scuba Diving
Scuba Diving: Full details (official wording)
PROHIBITED:
- Scuba diving in non-designated areas.
- To scuba dive or allow scuba diving without displaying a legal diver's flag at or near the point of submergence.
Such flag shall have one diagonal white stripe on a red background and be capable of being identified at a distance of not less than one hundred (100) yards. Divers must remain within a one hundred (100) foot radius of the flag. - To conduct a scuba diving class without a certified instructor.
- To scuba dive alone.
- To fail to report Scuba activities prior to a dive using an online form.
- Dive only in designated areas
- Report all dives using the online form before diving
- Request Form: Scuba Diving at Horsetooth Reservoir
- Request Form: Scuba Diving at Carter Lake Reservoir
- Display a dive flag (red with diagonal white stripe, visible from 100 yards)
- Stay within 100 feet of your dive flag
- No solo diving, always dive with a buddy
- Instructors must be certified to teach classes
Boating Regulations
All activities of recreational users on waters and in areas to which these regulations apply, shall be in compliance with these regulations and with Article 13 of Title 33, C.R.S. The following conduct and actions in operating a boat or other vessel on waters, or in areas to which these Regulations apply, are prohibited.
Operations
Safety
- No riding on gunwales, decking, or unsafe areas
- Don’t operate overloaded or unsafe vessels
- No operating under the influence
Speed & Distance
- Stay 150 feet from other vessels, swimmers, and people fishing
- Stay 100 feet from scuba dive flags
- Reduce speed near people, docks, and other vessels
- No wakes or speeds over five (5) MPH in wakeless zones
Navigation
- Travel counterclockwise at Carter Lake and Horsetooth Reservoir
- Follow all buoy designations; don’t tie to buoys or nav aids
- Don’t block narrow passages while anchored
- Right-of-way: Steer right when meeting head-on; yield to vessels on your right when crossing; yield to non-motorized vessels
Docking & Mooring
- Don’t block boat launch areas
- Limit public dock tie-ups to 10 minutes
- Mooring/beaching requires a lease (unless actively camping or fishing)
- Sail through mooring areas only when entering or exiting
Noise & Environment
- Engine noise must not exceed
86 decibels at 50 feet at full throttle - No dumping human waste into water
- Refuel at commercial stations only, not on the water
Age Restrictions
- Must be 18+ to operate a motorized vessel
- Ages 14–17 may operate with proof of CPW-approved boating safety course
Registration
Registration: Full details (official wording)
PROHIBITED:
- To operate, possess, or stow or permit to operate, possess or stow a vessel, or a boat with a motor or sail without a valid state registration certificate, registration numbers, expiration decal, and a valid ANS stamp.
Registration Numbers should read from left to right in block letters, need to be a minimum of three (3) inches in height, be a color contrasting the background color, and be attached in a permanent fashion. - To operate, possess, or stow or give permission to operate, possess, or stow a vessel on Larimer County Department of Natural Resources land or waters not requiring registration without having the owner's name and address written on the vessel in a clearly visible and permanent fashion.
Motorized & Sailboats
- Valid state registration certificate required
- Valid ANS (Aquatic Nuisance Species) stamp required
- Display registration numbers and expiration decal
Non-Motorized Vessels (Canoe, Kayak)
- Must display owner information
Registration Numbers
- Block letters, minimum three (3) inches tall
- Contrasting color to background
- Permanently attached, reading left to right
CPW Colorado Boat Registration Information
Prohibited
Prohibited Operation of a Vessel or Related Activities: Full details (official wording)
PROHIBITED:
- To operate a vessel with persons riding or sitting on either the starboard or port gunwales thereof or on a decking over the bow or in any other unsafe position.
- To operate a motorized vessel within one hundred fifty (150) feet of any swimming area, moored vessel, any other vessel, person engaged in fishing, or person in a vessel engaged in servicing buoys, or markings, and fail to reduce the speed of the vessel in order to prevent the wake or wash of the vessel from causing damage or inconvenience.
- To operate a vessel in a clockwise direction of travel on Carter Lake and Horsetooth Reservoir.
- To operate a vessel in such a manner as to create a wake, or to operate a vessel above 5 MPH in a posted wakeless zone.
- To operate or knowingly give permission to operate a vessel or be in actual physical control of a vessel while under the influence of alcohol, a narcotic drug, or any other drug which renders the operator incapable of safely operating a vessel, or any combination thereof. FINE: Amount to be assessed by the Court.
- To operate a vessel in violation of right-of-way rules, including failing to steer to starboard (right) when meeting another vessel head-on or nearly so; failing to yield to a vessel on the right in a crossing situation; and/or failing to yield to a non-powered vessel.
- To operate a vessel or manipulate any water skis, surfboard, inner tube, or similar device in a careless manner so as to endanger the person, life, limb, or property of any person.
- To operate or give permission to operate any vessel without adequate muffling devices so as to make excessive noise.
Excessive noise is defined as vessels emitting in excess of eighty-six (86) decibels while at full throttle and at a distance of fifty (50) feet from a sound level meter. - To use, or allow use, on the waters outside of designated swim areas, any air mattresses, inner tubes, air inflated devices, rubber rafts with less than two (2) air chambers or other flotation device, except while being towed behind a vessel, for water skiing.
This regulation does not apply to the use of approved life jackets. - To moor, beach, anchor, or otherwise leave a vessel (unless actively engaged
in camping or fishing with persons at the campsite) unless such vessel has a leased mooring from the reservoir concessionaire. - To discharge water closets or be capable of discharging water closets into the waters or to discharge any form of human waste into the waters.
- To fish, ski, wade, swim or beach any watercraft from boat-launching docks or ramp areas.
- To tie a vessel to a public dock for more than ten (10) minutes for purposes of loading, unloading, or mooring the vessel or otherwise loitering or occupying the ramp or docks in a way that creates a safety or operational issue.
- To operate, or give permission to operate, or offer for rent a vessel which is overloaded or unseaworthy.
- To fail to operate a vessel in compliance with the designation of the buoys displayed.
- To moor or attach a vessel to any buoy or navigation aid.
- To operate a ski-kite or parachute or any type of "flying tube."
- To operate any vessel within one hundred (100) feet of a scuba diving flag.
- To operate any vessel on Flatiron Reservoir, or to operate any motorized vessel on a reservoir where such use is prohibited.
- To operate a sailing vessel in a mooring area except for purposes of ingress and egress.
- To operate or give permission to operate any motorized vessel by/to a person under eighteen (18) years of age.
Exception: Any person under eighteen (18) years of age, but not less than fourteen (14) years of age, who has proof of successfully completing a boating safety course approved by CPW. - To operate or give permission to operate a Personal Watercraft (as defined in Section Z) between the hours of sunset to sunrise.
- To operate or give permission to operate a Personal Watercraft (as defined in Section Z) equipped by the manufacturer with a lanyard-type engine cutoff switch and not have the lanyard attached to the operator, operator's clothing, or personal flotation device as appropriate.
- To operate a Personal Watercraft towing a person on water skis, knee- board, inflatable craft, or any other device unless the Personal Watercraft (as defined in Section Z) is designed to accommodate three (3) persons.
- To unlawfully operate a vessel without posting a proper look-out by sight and hearing as well as by all available means appropriate in the prevailing circumstances and conditions so as to make a full appraisal of the situation and of the risk of collision.
- To unlawfully anchor any vessel so as to block movement of other vessels through narrow passages.
- To operate or give permission to operate a hydro flight device (flyboard) or sea scooter on any waterway
- No flying tubes, ski-kites, or parachutes
- No hydro-flight devices or sea scooters
- No motorized vessels on Flatiron Reservoir or other posted reservoirs
- Air mattresses, inner tubes, single-chamber rafts allowed only in designated swim areas or when towed
Personal Watercraft (PWC)
- No operation between sunset and sunrise
- Use engine cutoff safety lanyard when applicable
- Towing requires PWC rated for 3+ people
- Observer required when towing
For full details, see USCG & Colorado state boating laws
Required Safety Equipment
Required Safety Equipment: Full details (official wording)
PROHIBITED:
- Personal Flotation Device (PFD):
- To operate or give permission to operate a vessel less than sixteen (16) feet in length unless at least one (I) Type I Life Preserver, Type II buoyant vest, or Type III special purpose water safety buoyant device is on board for each person.
- To operate or give permission to operate a vessel sixteen (16) feet or more in length unless at least one (1) Type I life preserver, or Type II buoyant vest, or Type III personal flotation device is on board for each person, plus at least one (1) Type IV buoyant cushion or ring life buoy or its equivalent is present which is immediately available as a throwable device.
- To operate or give permission to operate any sailboard or surfboard, jet ski, or similar device unless such operator and passengers are wearing a United States Coast Guard (USCG) Type I, Type II, Type III, or Type V personal flotation device.
- To operate or give permission to operate a vessel unless the required personal flotation devices are readily accessible, legibly marked with appropriate USCG number, and are of the appropriate size for the person(s) wearing them or for whom they are intended.
- To equip a vessel with or use safety equipment which is not in good and serviceable condition.
- Sound Producing Device (SPD):
- To operate or give permission to operate a vessel without an efficient whistle or other sound producing mechanical appliance, other than a siren, which can be heard under normal atmospheric conditions for a distance of one-half mile.
- Carburetor Backfire Flame Arrestors:
- To operate or give permission to operate an inboard gasoline engine not equipped with an acceptable means of backfire flame control.
The following systems of backfire flame control are acceptable - backfire flame arrestor labeled: "Complies with UL 1111 per tests by (name of facility)," or "SAE J-1928, Marine," or U.S. Coast Guard approval number 162.016, 162.041, 162.015, and 162.042; or engine air and fuel induction system labeled with "SAE-J-l928, Marine" and manufacturer name.
- To operate or give permission to operate an inboard gasoline engine not equipped with an acceptable means of backfire flame control.
- Ventilation:
- To operate or give permission to operate any vessel without adequate engine, bilge, and fuel tank ventilation capable of removing any resulting gases prior to and during the time such vessel is occupied by a person.
The ventilation system shall have at least two (2) ventilation ducts. There will be one (1) rear facing cowl with a hose extending from it to the lower portion of the bilge. There will also be one (1) forward facing cowl with a hose extending from it to midway to the bilge or at least below the level of the carburetor air intake. Power ventilation systems are preferred over natural ventilation systems but are not mandated.
- To operate or give permission to operate any vessel without adequate engine, bilge, and fuel tank ventilation capable of removing any resulting gases prior to and during the time such vessel is occupied by a person.
- Fire Extinguishers:
- To operate or give permission to operate a vessel of closed construction, or twenty-six (26) feet in length or more, without the appropriate size and type U.S. Coast Guard approved fire extinguisher on board in compliance with the following:
BOAT CLASS | NUMBER & SIZE REQUIRED |
A | (1) B-I |
1 | (1) B-I |
2 | (2) B-1 OR (2) B-II |
3 | (3) B-1 OR (2) B-II & 1 B-I |
B-I | (1) 1/4 lb. foam, 4 lb. CO2, or 2 lb. dry chemical |
B-II | (2) 1/2 lb. foam, 15 lb. CO2, or 10 lb. dry chemical |
FINE$75.00
Outboard motorboats, less than twenty-six (26) feet in length, of open construction, not carrying passengers for hire, are exempt from this regulation.
b. To operate a vessel or give permission to operate a vessel of closed construction or a vessel twenty-six (26) feet in length or more without the fire extinguisher being readily accessible and stored away from potential hazard areas such as fuel tanks and engines.
- Lights:
- To operate any vessel from sunset to sunrise without the appropriate navigational lights.
All motorized vessels operating between sunset and sunrise must display all lights required by the current Colorado State Boating regulations:- Masthead light is a white light placed over the fore and aft centerline.
- Sidelights are a green light on the starboard side and a red light on the port side.
- Stern light is a white light placed near or on the stern.
- All paddle craft, including kayaks, canoes, and paddleboards, must display a white light at all times while operating between sunset and sunrise.
- To operate any vessel from sunset to sunrise without the appropriate navigational lights.
- To allow any child under the age of thirteen (13) to be on board any vessel or watercraft unless wearing a Type I, Type II or Type III Personal Flotation Device, unless in an enclosed cabin.
Personal Safety
- USCG-approved life jackets or PFD for all passengers—correct size, accessible, legibly marked
- Children age 12 and younger must wear a life jacket at all times while on the water, with limited exceptions for enclosed cabins
- Whistle or sound-producing device required
Engine & Fire Safety
- Flame arrestor required on inboard gas engines
- Proper ventilation for engine, bilge, and fuel tank
- USCG-approved fire extinguisher, properly stored
Night Lights
- Masthead: white, over fore and aft centerline
- Sidelights: green (starboard/right), red (port/left)
- Stern: white, near or on stern
Aquatic Nuisance Species (ANS)
Aquatic Nuisance Species: Full details (official wording)
- To knowingly or willfully possess, import, export or transport an Aquatic Nuisance Species (ANS) on a vessel.
- To knowingly or willfully launch or recover a trailered watercraft outside of designated hours or from a location other than an approved boat ramp.
- Knowingly or willfully launch a vessel without obtaining an ANS inspection on the day of launch.
- To interfere with or decline an ANS vessel inspection, high risk inspection or decontamination.
- ANS inspection required before launching
- Launch/recover only at approved ramps during posted hours
- Cooperate with inspections and decontamination. Refusal is prohibited
CPW Aquatic Nuisance Species Information
Water Skiing & Towing
Water Skiing & Towing: Full details (official wording)
PROHIBITED:
- To fail to wear a personal flotation device while on water skis, surfboards, inner tubes, or similar devices, or to allow a person to be towed on water skis, surfboards, inner tubes, or similar devices, without wearing a personal flotation device.
- To operate a vessel while towing any person on water skis, surfboards, inner tubes, or similar devices without an observer present in the vessel in addition to the driver, to observe the progress of the person being towed and be capable of relaying messages to the operator.
- To fail to display or cause to be displayed a twelve (12) inch square, orange or red flag to indicate: a downed skier, a skier in the water preparing to ski, a ski line extended from the vessel, a skier or equipment in the water in the vicinity of the vessel.
When the towed person is actively being towed and is not down in the water and the associated equipment has been retrieved, the flag shall not be displayed. - To water ski or tow persons on the water between the hours of sunset and sunrise.
- To water ski or tow persons or equipment on the water in areas designated as "No Wake" or "No Ski" areas.
Safety
- Life jacket or PFD required for anyone being towed
- Observer required on the towing vessel at all times
- Display a 12-inch red or orange skier-down flag when someone is in the water; remove once they’re up
Where & When
- No skiing or towing between sunset and sunrise
- No skiing or towing in “No Wake” or “No Ski” zones
Special Events
Special Events: Full details (official wording)
The Larimer County Department of Natural Resources recognizes that special events and activities sponsored by public and/or private organizations in Larimer County Natural Resource areas serve the public interest, benefit Larimer County, and are a valid and proper use of Larimer County Natural Resource areas. The Larimer County Department of Natural Resources will encourage and promote special events and activities throughout its system.
In order to protect and preserve park and open space facilities and resources, special events and activities will be governed by the following conditions:
- To unlawfully hold a Special Event. FINE $100, plus an additional amount to be assessed by the Court to be congruent with costs of compliance with lawful special event requirements.
- Special events are allowed and encouraged with proper approval
- Approval is required to host an organized event or activity
- Holding a special event without authorization is not allowed
Hermit Park Wedding Information
Special Event Permit Application
Film and Photography Permit Application
Preamble & Definitions
Resolution
REGULATIONS RELATING TO LARIMER COUNTY DEPARTMENT OF NATURAL RESOURCES AREAS AND FACILITIES
WHEREAS, Larimer County, through its Board of County Commissioners, operates recreational facilities in Larimer County, Colorado; and
WHEREAS, Section 29-7-101, C.R.S., authorizes the Board of County Commissioners to promulgate rules and regulations with respect to the operation of public recreational areas; and
WHEREAS the Board of County Commissioners on the 9th day of March, 1982, conducted a public hearing upon proposed regulations and adopted the same on March 24, 1982; and
WHEREAS, on May 21, 1982; January 10, 1984; January 29, 1985; December 17, 1986;
March 8, 1989; December 19, 1990; May 27, 1992; March 10,1993; December 9, 1997;
March 5, 2002; May 27, 2003; May 24, 2005; February 27, 2007; January 29, 2008; January
6, 2009, March 2, 2010, March 29, 2011, December 18, 2012, and December 16, 2014,
October 30, 2018, March 10, 2020, October 19, 2021, June 21, 2022, and January 16, 2024, certain amendments to said regulations were adopted by the Board; and
WHEREAS, the Board has determined upon the recommendations of the Director of the Larimer County Department of Natural Resources that it is appropriate to adopt certain further amendments to said regulations and to restate the regulations in a single document as shown in Exhibit "A" attached hereto.
NOW, THEREFORE, BE IT RESOLVED:
The Public Recreation Regulations be and the same hereby are amended and restated such that said regulations shall appear and be adopted in their entirety as set forth on Exhibit "A" attached hereto and incorporated herein by this reference.
I. AUTHORITY
These regulations are authorized by section 29-7-101, et. seq., C.R.S., 42-4- 101, et seq. C.R.S. and 30-15-401, et seq. C.R.S.
II. APPLICATION: JURISDICTION: PROCEDURE
These regulations shall apply to and be enforceable within all public recreation areas and facilities owned by, managed by, or operated under the authority of the Board of County Commissioners of Larimer County, Colorado. Enforcement of these regulations will be affected by the Department of Natural Resources Director, through the Board of County Commissioners, and the Sheriff. The Penalty Assessment procedure provided in Section 16-2-201, C.R.S., may be followed by any enforcement officer for any violation hereof. The Larimer County Court shall have jurisdiction in prosecutions of violations of the regulations. Simplified County Court procedures as set forth in Section 16-2-101, et. seq., C.R.S., and 16-2.3-102 shall be applicable to prosecutions of violations of these regulations. Any summons and complaint or citation or civil infraction brought in the Larimer County Court for a violation of any regulation shall be filed in the name of Larimer County by and on behalf of the People of the State of Colorado, with all process issued from the Larimer County Court likewise denominated. The District Attorney of Larimer County shall be empowered to enforce the regulations, and to appear and prosecute for Larimer County by and in the name of the People of the State of Colorado, in any proceeding in the Larimer County Court involving a violation of these regulations, unless otherwise limited by law.
III. PROHIBITED ACTS GENERALLY
The following conduct and actions are prohibited (notwithstanding anything contained in these regulations to the contrary, if an individual violates any of the regulations set forth in Section V hereof and is assessed a fine therefore, in the amount of $100.00 plus fees, and then within 12 months of such violation the same individual violates the same regulation one or more additional times and is again assessed a fine therefore, the fine for each violation subsequent to the initial violation shall, within the limits prescribed by Colorado law, be $50.00 greater than the fine previously assessed. Any person violating any regulation set forth in Section V hereof commits a Civil Infraction as defined in Section 16-2.3-101, C.R.S., as amended. If any of the regulations set forth in Section III hereof shall conflict with any other applicable law or regulation, the more stringent requirement shall control.
In addition to any fine or penalty authorized by these regulations, if any peace officer determines probable cause exists that any individual has violated any of the regulations set forth in Section V hereof, or any other federal, state or local law, such peace officer is authorized to require such individual to leave the public recreation area or facility owned by, managed by, or operated under the authority of the Board of County Commissioners, and not return within twenty-four (24) hours. Failure to comply with such direction shall be deemed a violation of C.R.S. 18-9-117.
It shall be a defense to any alleged violation of the regulations set forth in Section V hereof, that a Visitor Services Manager has provided specific written authorization for time, place and manner uses for special events, even if those time, place and manner uses conflict with regulations set forth in Section V hereof. However, no written authorization may exempt an individual or group from health, safety or welfare regulations.
IV. PENALTY ASSESSMENT PROCEDURE
Violations of these regulations may be enforced through the penalty assessment procedure set forth in Section 16-2-201 C.R.S. Service of the penalty assessment notice upon the owner or operator of the vehicle may be obtained by placing the notice on the vehicle. Such penalty assessment notice shall contain the license plate number and state registration of the vehicle and need not contain the identification of the alleged offender. Notwithstanding this provision, such penalty assessment may be served personally upon any violator.
Definitions (Section Z)
- Larimer County Natural Resources area
shall mean any building, structure, open space, conservation area, land, water, or other space under the control of the Larimer County Department of Natural Resources, regardless of whether such control is through ownership, dedication, lease, easement, covenant, memorandum of understanding, intergovernmental agreement, contract or other mechanism of control. - Public place
as defined by C.R.S. § 18-1-901(3)(n), means a place to which the public or a substantial number of the public has access, and includes but is not limited to highways, transportation facilities, schools, places of amusement, parks, playgrounds, and the common areas of public and private buildings and facilities. - Resident
for the purpose of purchasing or utilizing a Larimer County Department of Natural Resources resident parking pass, a "resident" is defined as anyone who possesses a valid Colorado Driver's License listing a Larimer County home address. Resident parking passes are only valid when displayed on a vehicle registered in the State of Colorado. - E-bike class definitions
Class I is for pedal assist with maximum of 20 mph electric assist. Class II is for bikes that provide electric power whether or not the rider is pedaling, but stops providing power when the speed reaches 20 mph. Class III is for bikes that continue providing electrical power up to 28 mph. All other bicycle laws apply. - Personal Watercraft
a motorboat that uses an inboard motor powering a water jet pump as its primary source of motive power and is designed to be operated by a person sitting, standing, or kneeling on the vessel, rather than the conventional manner of sitting or standing inside the vessel. “Personal watercraft” includes a motorboat or board known as a “specialty prop-craft”, which is similar in appearance to a personal watercraft but powered by an outboard or motor-driven propeller. - Vessel
Defined as any type of watercraft designed for the transportation of people. Inflatable vessels must have more than one air chamber, except for stand-up paddleboards. This definition excludes single- or multi-chamber inflatable devices not intended for transportation, such as inner tubes, pool floats, inflatable party islands, or similar recreational items.














