• Picnic Area
  • Restroom

Trailhead Description

Both the Flagstaff Summit East and West Trailheads, plus other smaller pull-off parking areas, provide access to many trails and amenities on Flagstaff Summit. Flagstaff Summit Road is open seasonally from May 1 - Oct. 30.


Restrooms available at Flagstaff Summit.

Picnic Facilities

Note: There is no potable water available at the Flagstaff Summit or Flagstaff Nature Center.

Picnic tables and trash cans are located around Flagstaff Summit. Learn about reserving the picnic facilities and the Sunrise Amphitheater.


3.4 miles up Flagstaff Road, to Realization Point, then 0.5 miles on Flagstaff Summit Road. Please note: the vehicle length limit for Flagstaff Road is 30 feet.


Parking lots with a parking fee. Information on parking permits & fees. Flagstaff Summit West has 16 standard parking spaces and one ADA space.

Area Info

Flagstaff Nature Center

If you haven't paid a visit to the Flagstaff Nature Center, located on Flagstaff Summit, please stop by during the summer and fall months.


This area is identified as being mobility-friendly. See the Visitors Experiencing Disabilities Page for trail details.

Bike Regulations

Bicycles are allowed on Flagstaff Summit Road and Chapman Drive, but not on other trails in the area. Other bike trails on OSMP.

Dog Regulations

Flagstaff Mountain 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

Horses are allowed on most trails. On-trail riding is encouraged 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 songbirds, birds of prey, mule deer, red foxes, and coyotes.