National Park Service: Worst rockfalls, landslides in Zion National Park

A large rockfall recently closed state Route 9 in Zion National Park, prompting a look back at the worst rockfalls and landslides in the park’s history. The most recent rockfall occurred Wednesday, Sept. 23, 2015 and closed state Route 9 near the Pine Creek Bridge on a switchback near the Mount Carmel Tunnel, according to Zion National Park officials. The largest...

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