• Restroom

Trailhead Description

The Boulder Valley Ranch Trailhead provides access to many trails in the Boulder Valley Ranch area, including: Sage, Eagle, Cobalt and Left Hand.


Located at the trailhead.

Picnic Facilities

No picnic facilities.


One mile north of Boulder on Highway 36, then one mile east of Highway 36 on Longhorn Road (a dirt road). The turn-off from the highway onto Longhorn Road is marked with a sign for Boulder Valley Ranch Open Space. Parking lot on south side of Longhorn Road.


Boulder Valley Ranch has 14 standard parking spaces and 1 ADA space.

Area Info

Bike Regulations

Bicycles are allowed on the Eagle, Sage, North Rim, and Left Hand Trails. Bicycles may be ridden only on those trails that are posted with the international bicycle symbol.


Class 1 and Class 2 e-bikes are allowed on the Eagle, Sage, North Rim, and Left Hand Trails in the Boulder Valley Ranch area. Learn more in the Guide to Electric Bikes on Open Space.

Dog Regulations

Boulder Valley Ranch Area Dog Regulations Map

Learn about bringing your dog to OSMP. Dogs must be on a hand-held leash at all times unless they meet the voice and sight control standard and display a City of Boulder Voice and Sight tag. Dog excrement removal is required by law. A dog station is available to aid in the collection of dog excrement.

Horse Regulations

Allowed on most trails. Off-trail riding is discouraged to protect rare plants and wildlife habitat. Learn more about riding your horse on OSMP. Horse-trailer parking is possible at Boulder Valley Ranch Trailhead, but there are no designated horse-trailer parking spaces.


There is an abundance of raptors: eagles, northern harriers, red-tailed hawks may be observed. Mule deer and coyotes are frequently sighted. Many snakes can be found in this area including rattlesnakes and bull snakes.

Boulder Valley Ranch is home to a fragile plant community on the black "Shale Barren" soils. Bell's Twinpod is a very rare plant that is unique to shale soils of Front Range Colorado.

Nearby Trailheads