The Virgin River and its tributaries run through Zion National Park. This water is the primary agent of erosion that continues to carve and shape Zion. The North Fork of the Virgin River begins north of Zion at Cascade Falls, where it drains out of Navajo Lake at 9,000 feet above sea level. The East Fork of the Virgin River originates above Long Valley. Both the North and East Forks of the Virgin River run through the park and empty into Lake Mead at about 1000 feet above sea level, where it joi

Would you wait 2 hours in line at a trailhead to hike? You might have to at Zion National Park