Zion closes multiple climbing routes on cliffs used by nesting peregrine falcons

Peregrine falcons in Zion National Park, Utah, date not specified | Photo courtesy of James McGrew via the National Park Service, St. George News

ST. GEORGE — The National Park Service announced this week the closure of several climbing routes in Zion National Park, which began Tuesday.

Two peregrine falcons fly in Zion Canyon, Utah, date unspecified | Photo courtesy of James McGrew, St. George News

The climbing routes that have been closed are used by nesting peregrine falcons, according to a press release issued by the park service. The falcons are especially sensitive to being disturbed while they nest. If disturbed, a nesting pair may abandon their nest site and not nest again until the following year. The closure date is based on National Park Service monitoring of peregrines’ arrival to nesting sites on cliffs in the park from 2001 to 2021.

Climbers should check Zion’s Seasonal Climbing Closures webpage for details, and portions of the following cliffs have been closed to protect the falcons:
  • Angels Landing
  • Cable Mountain
  • The Great White Throne
  • Isaac (in Court of the Patriarchs)
  • The Sentinel
  • Mountain of the Sun
  • North Twin Brother
  • Tunnel Wall
  • The East Temple
  • Mount Spry
  • The Streaked Wall
  • Mount Kinesava

All other cliffs will remain open to climbing. Visitors are encouraged to download the 2022 Guide to Zion National Park’s Seasonal Raptor Closures to see maps of cliff-specific closure boundaries. Climbers are responsible for checking maps of closed areas. The National Park Service will update the Seasonal Climbing Closures webpage as areas reopen to climbers.

Stock image of Angels Landing, Zion National Park, Utah, St. George News

Park wildlife biologists and volunteers from the Zion Climbing Coalition will monitor the nesting activity of peregrine falcons throughout the 2022 breeding season. Closures cover broad areas at the start of the season to give raptors first choice in selecting suitable nest sites.

The park service monitors these areas to locate nests and reopen cliffs that peregrine falcons do not select as nest sites. The date for cliffs reopening to climbers varies from year to year and typically ranges from late spring to summer.

Zion National Park is home to many breeding peregrine falcons each spring and summer. These birds of prey were listed as an endangered species in 1970 under the Endangered Species Act. Their decline was primarily due to DDT; an insecticide that caused the birds to produce thin-shelled eggs that were easily broken, killing the developing embryo inside.

Thanks to the U.S. ban on DDT in 1972, as well as the success of captive breeding programs, peregrine populations have recovered across North America and the species was removed from the endangered species list in 1999. Zion National Park has been and will continue to be an important sanctuary for peregrines and many other wildlife species.  

Copyright St. George News, SaintGeorgeUtah.com LLC, 2022, all rights reserved.

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