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Temporary Closures, Advisories and Fire Bans

Trail Map

Open Space and Mountain Parks (OSMP's) interactive trail map now includes longer-term trail closures - an easy option to check before your trip!

Muddy trail closures as of Thurs. Nov. 15, 2018
Trails in the Marshall Mesa, Greenbelt Plateau, Flatirons Vista, Doudy Draw and Springbrook areas, and the Left Hand Trail from Boulder Valley Ranch to Neva Rd are closed because of muddy conditions. Marshall Mesa, Greenbelt Plateau and Flatirons Vista Trailheads are closed. Doudy Draw Trailhead remains open to allow vehicle parking for visitors accessing the South Mesa area, but trails leading south out of Doudy Draw Trailhead are closed. OSMP staff will monitor trails and open them when conditions dry out.

Doudy Draw/Flatirons Vista Trail Closures Marshall Mesa/Greenbelt Plateau Trail Closures Left Hand Trail Closure
Map Map  Map
Community Ditch (west of Hwy 93)
Doudy Draw
Flatirons Vista North
Flatirons Vista South
Goshawk Ridge
Prairie Vista
Springbrook Loop North and South
Coal Seam
Community Ditch (east of Hwy 93)
Cowdrey Draw
Greenbelt Plateau
High Plains
Marshall Mesa
Marshall Valley
Left Hand

Trail closures related to Xcel transmission line work
Please visit for details on current closures. The Bear Canyon Trail west of the Mesa Trail is closed 24 hours a day and is expected to continue through mid-November, weather permitting. Other trail closures and intermittent trail closures will occur on trails in the project area; details can be found at

IBM Connector Trail closed Nov. 26-30, 2018
The IBM Connector Trail from 63rd St. to Cottontail Trail will be closed for maintenance from 7 am Monday, Nov. 26 until 5 pm Friday, Nov. 30. The maintenance will address the sump pump control system and wiring in the underpass at Diagonal Highway to help prevent future flooding. 

NCAR-Bear Canyon Trail work starting Sept. 27, 2018  
Starting September 27, the NCAR-Bear Canyon Trail will be closed 8 am to 5 pm, Monday through Friday, from the Stony Hill access to the NCAR-Bear Connector to complete some of the department’s final 2013 flood-recovery work to repair trails and restore wildlife and plant habitats in the area. This project is expected to last two months; more information can be found at

Flagstaff Summit Road closed to vehicles for winter Oct. 30, 2018
The Flagstaff Summit Road is closed to vehicles for the winter. It will reopen to vehicles May 1, 2019.

East-Boulder White Rocks Trail section closed
The bridge on the East Boulder-White Rocks Trail is closed after flooding conditions on the path caused the bridge to become disconnected from its embankment. OSMP advises visitors not to approach the bridge. The East-Boulder White Rocks Trail remains open up to the bridge closure from both directions, but no through trail travel is allowed - see the closure map

Rock Island 1 in Boulder Canyon closed
Rock Island 1 is closed. The rock fractured and part fell onto the Boulder Canyon Creek path. Sections of the remaining rock have been evaluated as unstable so it is closed until recommended bolting can be completed.   

No parking along Highway 170 near Doudy Draw and South Mesa Trailheads
Please remember that parking is not allowed on Highway 170 at any time.

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