Huff Hills Trail is a standout hiking destination in Mandan, North Dakota, covering 4.5 miles with 350ft of elevation change. Stats: 4.5 miles, 350ft gain, Moderate. Type: Loop. Surface: Dirt. Time: 2-3 hours. Fee: Free. Dogs: Yes. Permit: No. Wildlife: deer, coyotes, pheasants, eagles. Best seasons: Rolling hills with panoramic Missouri River valley views. Pack water, layers, and appropriate footwear. Conditions vary across North Dakota. Leave No Trace: stay on trail, pack out all waste, respect wildlife.