Tuckup Trail is a long, remote route on the North Rim of the Grand Canyon, stretching about 100 miles from Toroweap Point to 150 Mile Canyon along the Esplanade Sandstone of the Supai Formation. It began as a cattle trail, and cowboy camps still mark that earlier use of the canyon country. Rather than following the park’s better-known corridor routes, it crosses a broad, rugged bench below the rim through one of the canyon’s most isolated areas. Scarce water, with Schmutz Spring among the few dependable sources, makes the route especially demanding. Its western end also passes through a geologically striking landscape shaped by faulting and volcanism.