Seneca Rocks Trail is a premier hiking destination in Pendleton County, West Virginia, covering 2.8 miles with 900ft of elevation gain. Stats: 2.8 miles, 900ft gain, Hard. Type: Out-and-Back. Surface: Rock/Dirt. Time: 2-3 hours. Fee: Free. Dogs: Yes. Permit: No. Wildlife: peregrine falcons, white-tailed deer, black bears, timber rattlesnakes. Best seasons: Spring through fall; peregrine falcons nest on the rocks — respect seasonal closure signs. Seneca Rocks is a quartzite fin rising 900 feet above the North Fork Valley — the most iconic rock formation in the eastern US and a premier climbing destination. The hiking trail reaches a viewpoint just below the summit. Pack plenty of water and layers. Mountain weather in the southern Appalachians can change rapidly — always check the forecast. Leave No Trace: stay on trail, pack out all waste, respect wildlife.