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Bill McGuire | Special to The Tribune The Virgin River cuts through the Sentinel slide path, seen on the left, in Zion Canyon on Al Hartmann | The Salt Lake Tribune Hikers pose for a picture looking into Zion Canyon from the Canyon Overlook Trail. Al Hartmann | The Salt Lake Tribune Hikers look into the Zion Canyon from the Canyon Overlook Trail. Bill McGuire | Special to The Tribune Zion Canyon seen from Observation Point on May 20, 2016. How a massive rockslide shaped Zion Canyon The Sentinel, one of Zion National Park's iconic peaks. At 7,157 feet in elevation, it Al Hartmann | The Salt Lake Tribune Hikers pick their way down Angels Landing Trail looking into the valley floor of Zion Nation