Boulder Open Space and Mountain Parks is instituting seasonal closures to protect raptors during their nesting season.
A news release states the closures, which begin Friday and run through July 31, and are designed to protect eight ospreys, seven peregrine falcons, seven prairie falcons, five golden eagles and a bald eagle.
No designated trails will close, but Open Space and Mountain Parks is closing areas designated as raptor habitat areas. Open Space and Mountain Parks staff and volunteers will monitor the areas, and closures might be lifted if nesting attempts have failed or the birds are not present.
• Mount Sanitas Summit, accessible from the Mount Sanitas Trailhead a half-mile west of Fourth Street and Forest Avenue.
• Third Flatiron, including the East and West Ironing Boards, Queen Anne's Head and Jaws, and WC Pinnacle, accessible from the Chautauqua Trailhead.
• Lefthand Canyon Palisades at the intersection of Lefthand Canyon Drive and Olde Stage Road. The Buckingham picnic area remains open.
• Flagstaff Mountain's the north side will be closed. The Boy Scout Trail will remain open.
• May's Point cliff. May's Point Trail will remain open.
• Skunk Canyon, including Ridges 2, 3 and 4, the Aechean Pronouncement, the Dreadnaught, the North Ridge and the entirety of Sacred Cliffs, accessible from NCAR Trailhead at the west end of Table Mesa Road.
• The Back Porch and The Box, accessible from the NCAR Trailhead at the west end of Table Mesa Road.
• Bear Creek Spire and Der Freischutz, accessible from the NCAR Trailhead at the west end of Table Mesa Road.
• Fern Canyon, accessible from the NCAR Trailhead at the west end of Table Mesa Road. The designated Fern Canyon Trail will remain open.
• Shadow Canyon and The Matron, accessible from the South Mesa Trailhead. The Maiden will remain open and accessible from the east; Shadow Canyon Trail will remain open.
• The Wings, accessible from the NCAR Trailhead at the west end of Table Mesa Road.
• The entire Mickey Mouse wall, including Cryptic Crags, which is accessible from the Goshawk Ridge Trail.
The closures might affect climbing, and climbers are asked to use the city's interactive map of closures to see if areas they want to visit are off limits. The map is located at bouldercolorado.gov/wildlife-closures.
John Bear: twitter.com/johnbearwithme