Crown Rock Trailhead
Increased enforcement on Flagstaff Mountain: Open Space and Mountain Parks (OSMP) and county open space rangers will be increasing enforcement in the Flagstaff Mountain area to address illegal parking and crowding. If it’s essential to recreate, stay as close to home as possible and avoid unnecessary travel. If you see a full or crowded area, move on.
Protect people, stay home. If it’s essential to go outside, practice responsible recreation. Maintain more than 6 feet of physical distancing from people not your household, follow face-covering guidelines and avoid unnecessary travel. Learn more about how OSMP is responding to COVID-19 and increasing visitation. View OSMP closures and cancellations related to COVID-19. Shelters and picnic areas are closed.
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.
Located approximately 2.1 miles up Flagstaff Road. Please note: the vehicle length limit for Flagstaff Road is 30 feet.
Please check for Trail & Area Closures.
You are responsible for knowing and complying with all closures and OSMP rules & regulations.
Parking lot at the trailhead, with parking fee. Information on parking permits & fees.
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.
Crown Rock Trail provides access to popular bouldering spots and eventually extends down into Gregory Canyon.
Picnic facilities are available directly off of trail.
Bicycles are not allowed on this trail. Bicycles may be ridden only on those trails that are posted with the international bicycle symbol.
Learn about bringing your dog to OSMP. All dogs must be leashed in the Trailhead Leash Area. Beyond the trailhead, dog control requirements vary from trail to trail, so carefully watch for dog regulation signs at trailheads and trail intersections. On most OSMP trails in this area, 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.
Allowed on most trails. Off-trail riding is discouraged to protect rare plants and wildlife habitat. Learn more about riding your horse on OSMP.
Black bears and mountain lions inhabit this area. Many other wildlife species are common including birds of prey, mule deer and coyotes. White-tailed and mule deer are common. Red-tailed hawks, foxes and coyotes are sometimes seen.