Kolob Arch Trail Zion Backcountry is a premier hiking destination in Virgin, Utah, covering 14.0 miles with 2000ft of elevation gain. Stats: 14.0 miles, 2000ft gain, Hard. Type: Out-and-Back. Surface: Dirt/Sand. Time: 7-8 hours. Fee: $35 Zion NP fee. Dogs: Yes. Permit: No. Wildlife: mule deer, black bears, mountain lions, wild turkeys, golden eagles. Best seasons: April through November; a demanding wilderness day hike or overnight to one of the world's largest arches. Kolob Arch spans 287 feet — one of the longest natural arches on Earth — and sits deep in Zion's remote Kolob Canyons backcountry. The primitive trail follows La Verkin Creek through towering red sandstone canyon walls. Pack plenty of water — desert and high-altitude trails demand more hydration than you expect. Layers are essential above 10,000 feet. Leave No Trace: stay on designated trails, pack out all waste, and respect wildlife and other visitors.