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White Rocks Trailhead

White Rocks Trailhead


West of 95th Street on West Phillips Road, approximately 1.5 mi. north of Valmont Road.

Please check for Trail & Area Closures.

Or view the interactive trail map (includes trail closures) and the interactive wildlife closures map

You are responsible for knowing and complying with all closures and OSMP rules & regulations.


A small parking lot (approx. 10 cars) just north of W. Phillips Road at the trailhead.


Please keep your car doors locked and your car windows rolled up at all times while leaving your vehicle parked at OSMP trailheads. Also consider leaving important valuables at home or take them with you while visiting open space. To report suspicious activity please call City of Boulder Dispatch 303-441-3333 or Boulder County Dispatch 303-441-4444. For crimes in progress, call 911 immediately.


View White Rocks Trail Map pdf

East Boulder Trail extends to the west from this location through rolling hills of the grassland ecosystem. (**Please note that all visitors must stay on trail in the White Rocks Nature Preserve since it is a Habitat Conservation Area.) The western terminus is at the Gunbarrel Trailhead at the intersection of Boulderado and Cambridge in the Heatherwood neighborhood. The trail may also be taken southward, where it forks and crosses the private driveway (**Please stay on trail and do not hike on this private driveway), through rolling hills with vistas of the White Rock cliffs, past wetlands and over the bridge at Boulder Creek. The trail passes through the Lower Boulder Creek Habitat Conservation Area (HCA) where off-trail travel is not permitted. This southbound trail can be taken across Valmont Road and into Teller Farm. Its terminus is at the South Trailhead of Teller Farm (north of Arapahoe Road).


This area is identified as being popular with people using wheelchairs. See the Accessible Trails Page for details.


No facilities available.


No picnic facilities.


Bicycles are allowed throughout the length of the East Boulder Trail. Bicycles may be ridden only on those trails that are posted with the international bicycle symbol. Other bike trails on OSMP.


Learn about bringing your dog to OSMP. Dogs are not permitted in the White Rocks Nature Preserve or within 100 yards of Teller Lake. All dogs must be leashed in the Trailhead Leash Area. Beyond the trailhead, 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. Dogs are not permitted north of Valmont Road. Dog excrement removal is required by law.


Horses are allowed on most trails. On-trail riding is encouraged to protect rare plants and wildlife habitat. Popular areas for horseback riding.


The White Rocks Nature Preserve supports a diverse array of animal. Among them are raptors, waterfowl, songbirds, white-tail deer, bats, coyotes, foxes, snapping turtles, and snakes.


  • The ponds in the White Rocks Nature Preserve were previously gravel pits mined and reclaimed by the Flatirons Company.
  • The area has a rich agricultural history.