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Parks & Open Space

5201 St. Vrain Road
Longmont, CO  80503
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tel (303) 678-6200
fax (303) 678-6180

Boulder County Fairgrounds
9595 Nelson Rd.
Affolter House
Longmont, CO  80501
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tel (303) 678-6235
fax (303) 678-6322

 


Mountain Bikes on Open Space

Mountain bikers on Hall Ranch.

Boulder County offers a wide variety of mountain biking opportunities. Most trails are multi-use; however, there are restrictions at some parks.

Mountain bikes are not allowed on the following trails:

  • Anne U. White Trail at Fourmile Canyon Creek
  • Nighthawk and Button Rock Trails at Hall Ranch
  • Bluebird Loop and Delonde Trails at Caribou Ranch Open Space
  • Lichen Trail at Heil Valley Ranch
  • Bummer's Rock Trail at Betasso Preserve

Mountain bikes are also not allowed on the main Canyon Loop Trail at Betasso on Wednesdays and Saturdays to help mitigate trail user conflicts. Certain other restrictions at Betasso also apply.

Because of potential conflicts and impacts, mountain biking is closely monitored. Therefore, to protect your access to open space trails, please keep the following points in mind. On all trails:

  • Always yield the right-of-way to other trail users.

  • Control your speed at all times.

  • Stay on designated roads and trails.

  • Announce your presence when approaching other trail users.

  • Practice minimum impact cycling: avoid muddy trails, excessive braking and shortcutting switchbacks.

Take special care with equestrians

Although most people in Colorado are accustomed to seeing mountain bikers on trails, many horses are not. When approaching an equestrian:

  • Slow down!

  • Use a normal speaking voice to identify yourself to the rider and allow the horse to feel comfortable with your presence.

  • Let the rider know how many people are in your party and whether there are any other approaching bikers.

  • Dismount from your bike and step off the trail until the horse and rider have passed.

  • If the rider uses hand signals to communicate with other trail users, watch for them: an arm extended straight out and down indicates that the rider would like you to slow down; a slow forward and back arm wave means that it is okay to pass.

Yielding the right of way means to:

  • Slow down to a safe speed

  • Be prepared to stop

  • Establish communication

  • Pass safely

Betasso Preserve

  • Mountain biking is prohibited on Wednesdays and Saturdays on the Canyon Loop Trail.

  • Mountain bikers are required to travel one direction on the Canyon Loop Trail. Please check the sign at the trailhead because directional use will alternate monthly. Other trail users are encouraged to travel in the opposite direction, but not required.

  • Bummer's Rock Trail is closed to mountain biking.

  • The Betasso/Boulder Canyon Link is open for use. From the top, access the link east of Bummer's Rock trailhead just before the water treatment plant. From the bottom, access the link along Boulder Canyon (Highway 119) just east of the tunnel. This link is extremely steep with loose rocks on the surface, use at your own risk.

  • Mountain bikers must ride on designated trails only. Law enforcement officers strictly enforce these regulations. Fines begin at $50.

 

Black-tailed prairie dog.

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