Open Space and Mountain Parks has temporarily closed trails and trailheads

The City of Boulder’s Open Space and Mountain Parks (OSMP) Department has temporarily closed numerous trails and trailheads because of muddy trail conditions. OSMP has closed the Marshall Mesa, Greenbelt Plateau and Flatirons Vista trailheads, along with access points in those areas. In addition, OSMP has closed the following trails:

Marshall Valley
Coal Seam
Marshall Mesa
Community Ditch
Cowdrey Draw
Greenbelt Plateau
High Plains
Flatirons Vista North
Flatirons Vista South
Prairie Vista
Doudy Draw
Springbrook Loop North and South
Goshawk Ridge
Left Hand

The Doudy Draw Trailhead will remain open for vehicle parking. This will allow visitors to access the South Mesa Trailhead and trails that stretch north of Highway 170. However, all trails leading south out of the Doudy Draw Trailhead will be closed. OSMP will reopen closed trails and trailheads when conditions improve.

OSMP has enacted these temporary closures to prevent trail and vegetation damage along many of the city’s multi-use trails. OSMP asks visitors to remain on trail while traveling along the department’s open paths because traffic around muddy areas lead to the widening and braiding of trails, which can harm nearby plant life.

For more information about OSMP trails, go to or call 303-441-3440.