North Bass Trail, Grand Canyon

The trailhead, at an elevation of 7,500 feet, begins at Swamp Point, at the end of Swamp Point Road. This 14-mile route is considered difficult, and requires considerable route-finding expertise. Considered one of the Canyon's most strenuous trails, it is covered with heavy brush and subject to rockslides. Before undertaking this three to four-day roundtrip hike, hikers are advised to use a current Kaibab Forest map, as older versions may not accurately depict existing roads.