Boulder County, Colorado

Elevation Gain1,283ft
Trailhead Elevation5,735ft
Elevation Min/Max5735/6929ft
Elevation Start/End5735/5735ft


Flagstaff is a hiking and horse trail in Boulder County, Colorado. It is two miles long and begins at 5,735 feet altitude. Traveling the entire trail is 3.4 miles with a total elevation gain of 1,283 feet. Along the trail there are a waste basket, a picnic site, a shelter, and parking. Near the end of the trail are an information guidepost and an information board. This trail connects with the following: Ute, Crown Rock Climbing Areas, Plains Overlook, Crown Rock and Panorama.

Flagstaff Professional Reviews and Guides

"Flagstaff Mountain has a different feel from Green Mountain and Bear Peak, partly because it is smaller in stature, partly because a road goes to the top, and partly because—given the other two factors—it is more heavily traveled. It is a better-known destination for road cyclists, and the trail to the top crosses the road in five different places, each way, so runners can race bikers."

"Test your climbing prowess on the switchbacks of Flagstaff Mountain, and achieve a bird’s-eye view of the little town below."

Flagstaff Reviews

Do you know something we don't know? Help others by leaving a review.

Flagstaff Photos

Help others discover amazing sights!

Trail Information

Boulder County
Nearby City
Moderate to Difficult
Skill Level
Additional Use
DeLorme: Colorado Atlas and Gazetteer, pp. 29–30, 39–40
Local Maps

Activity Feed

Nov 2018