Black Dragon Canyon is an easy 3 mile (5 km) hike through a narrow canyon with overhanging walls, Indian Petroglyphs and camping. Black Dragon Canyon is located right off Interstate 70, about 15 miles (25 km) west of Green River, Utah. Drive west on I-70, turn off the freeway onto a dirt road and gate after mile marker 147, head north for a little over one mile, turn west at the sign for Black Dragon Wash and drive for about a half mile. - AsNotedIn