Hacklebarney State Park Trail is a standout hiking destination in Long Valley, New Jersey, covering 3.0 miles with 400ft of elevation change. Stats: 3.0 miles, 400ft gain, Moderate. Type: Loop. Surface: Rock/Dirt. Time: 1-2 hours. Fee: $5 park fee. Dogs: Yes. Permit: No. Wildlife: deer, herons, brook trout, mink. Best seasons: Dramatic Black River gorge trail in Morris County. Pack water, layers, and appropriate footwear. Conditions vary across New Jersey. Leave No Trace: stay on trail, pack out all waste, respect wildlife.