White Rocks Trailhead
Always bring a face covering when leaving your home. Anyone over 12 years old is required to wear face coverings anytime they cannot maintain six feet of distance at OSMP trailheads and when passing others on trails. If visitors are at least 6 feet away from others, they do not need to wear a face covering over their nose and mouth. However, if visitors reach 6 feet distance to someone else on the trail, they should put the covering back over their nose and mouth. Learn more.
Limited parking on Flagstaff Mountain. Flagstaff Mountain continues to be busy on the weekends. Parking is extremely limited. For your safety & the safety of others, do not park along the side of the road. Illegally parked vehicles can be ticketed and towed. Consider visiting different locations. Plan your visits through OSMPTrails.org or download the Boulder AreaTrails App.
Siempre traigan un cobertor facial cuando salgan de su hogar. Cualquier persona mayor de 12 años requiere usar un cobertor facial cuando no pueda mantener una distancia de 6 pies (2m), ya sea en las entradas de los parques o cuando pasen a otros en el sendero. Si los visitantes están a más de 6 pies (2m) de otros, no necesitan usarlo para cubrirse la nariz y la boca. Sin embargo, si los visitantes se acercan a 6 pies (2m) o menos de distancia de alguien en el sendero, deben cubrirse la nariz y la boca.
Stay on trail and walk through mud. If needed, step off to maintain distance. Please avoid stepping on vegetation. If possible, step onto a rock or a bare spot to let others pass, then step back on the trail. Politely announce yourself if you need to pass others. Traveling off trail, whether hiking, running or biking, can permanently damage vegetation and widen trails. Learn more.
Proteja a las personas, quédese en casa. Si es indispensable salir, practique la recreación responsable. Mantenga 6 pies de distancia física, use cobertores de cara y evite viajes innecesarios. Las áreas de refugio y picnic están cerradas. Para más información.
West of 95th Street on West Phillips Road, approximately 1.5 mi. north of Valmont Road.
Please check for Trail & Area Closures.
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.
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.