Mount Nebo Summit Trail is a premier hiking destination in Nephi, Utah, covering 14.0 miles with 5000ft of elevation gain. Stats: 14.0 miles, 5000ft gain, Hard. Type: Out-and-Back. Surface: Rock/Dirt. Time: 8-10 hours. Fee: Free. Dogs: Yes. Permit: No. Wildlife: mountain goats, mule deer, golden eagles, hawks, pikas. Best seasons: July through October only; the highest Wasatch peak demands an alpine start by 5am for a safe return. Mount Nebo at 11,928 feet is the southernmost and highest peak of the Wasatch Range. The strenuous summit trail involves extensive ridge scrambling with 360-degree views from central Utah to the Uintas. 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.