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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!

Trail closures related to Xcel transmission line work
Starting as early as Monday, July 23, Xcel will continue using a helicopter to install new transmission lines after several weeks of responding to wildfires on Colorado’s Western Slope. This upcoming work is anticipated to be completed by Thursday, July 26.  Because of the complex nature of the upcoming transmission line work next week, OSMP will again close the South Mesa Trailhead and these following trails while this work occurs:

  •  The Towhee, Homestead, Mesa Connector, Big Bluestem and Upper Big Bluestem trails.
  • Portions of the Mesa, Lower Big Bluestem, South Fork Shanahan and North Fork Shanahan trails.

View a map of the upcoming closures pdf. Because of the rugged location of transmission lines in Bear Canyon, longer-term trail closures in the area are likely to occur beginning in August. OSMP recognizes the impacts this transmission line work is having on residents and visitors, and we appreciate your patience while this work occurs.

Fourth of July Trailhead/Buckingham Campground parking lot closure July 30-31, 2018
The upper parking lot at the Fourth of July Trailhead/Buckingham Campground will be closed from 8 am – 5 pm on Monday, July 30 and Tuesday, July 31 for general maintenance. There will be other parking available at the trailhead.

OSMP administrative operations to relocate to 2520 55th St., office closed during move Aug. 1-6, 2018
To address significant space limitations, inefficiencies and needed upgrades and repairs at five OSMP current office locations, the majority of the department’s staff will move to 2520 55th Street in Boulder in early August. The current OSMP Administrative office at 66 S. Cherryvale will be CLOSED starting Aug. 1 at 12 pm and will re-open at 2520 55th St. the morning of Aug. 7. Learn more about the relocation

Boulder County fire restriction effective June 12, 2018  
Boulder County has enacted Level 1 Fire Restrictions for western Boulder County. OSMP grills and fireplaces are closed because of the ban. More information from Boulder County on what's included in the ban

1st/2nd Flatiron Trail project and closures beginning June 4, 2018 
Repair efforts on the 1st/ 2nd Flatiron Trail will continue this year. Work will include the ‘repair in-place’ of numerous failing stone structures and the restoration of eroding slopes. The trail will be closed Mondays through Thursdays from 8:00am-4:30pm. The closure will begin at the base of the 1st Flatiron and will allow climbers to ascend the 1st and then hike back down the trail – delays should be expected. 

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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