Category: Closures

  • Golden Eagle Closures – New Period

    Starting on December 15, 2022 the Golden Eagle closures will be in effect in parts of Skunk Canyon, including all of the Sacred Cliffs as well the top of Flagstaff Mountain. The new golden eagle closure will be in effect from December 15 until July 31. OSMP is implementing the earlier closure date to follow…

  • Flatirons Temporary Trail Closures

    Here are the trails where closures are expected during the Summer into the Fall: First and Second Flatirons: OSMP will be closing the trail from 8 a.m. to 4:30 p.m. Monday through Thursday in the Summer to rebuild stone structures and restore native plant life along the trail. The closure starts at the base of…

  • Royal Arch Trail Closure

    Starting on Monday, May 17, the City of Boulder will implement closures along the Royal Arch Trail  to reroute the popular trail around areas prone to significant erosion. To help protect visitors and OSMP trail crews, the city will close the Royal Arch Trail from 7 a.m. to 5 p.m., Monday through Thursday. The city…

  • Cliff Nesting Raptor Closures Update May 14, 2020

    Update May 14, 2020: Closure has been lifted for Bear Creek Spire and Der Freischutz, including Frankenstein’s Castle, The Bubble, Der Freischutz, Southern Dinosaur Egg, Northern Dinosaur Egg, north of Bear Canyon Trail (the designated Bear Canyon hiking trail remains open).   Update April 30, 2020: Closures have been expanded to include The Thing and The Morning After…

  • Cliff Nesting Raptor Closures February 1 – July 31

    The following areas are closed from February 1 – July 31 to protect cliff nesting raptors: Flagstaff Mountain, the north side of Flagstaff Mountain. The Boy Scout Trail remains open. May’s Point cliff, May’s Point Trail will remain open. Third Flatiron, including Queen Anne’s Head, W.C Fields Pinnacle, 1911 Gully and the Ghetto, the East Bench…

  • How to muffle your drill during nesting season

    [av_heading tag=’h3′ padding=’10’ heading=’How to muffle your drill during nesting season’ color=” style=” custom_font=” size=” subheading_active=” subheading_size=’15’ custom_class=”][/av_heading] [av_textblock size=” font_color=” color=”] Raptor-nesting season takes place each year in the Flatirons from late winter through midsummer, resulting in the closure of many formations from February 1 through July 31 (some areas might open earlier depending on the…