Trail Canyon to Dark Canyon Professional Review and Guide
"The hike down open, southwest-trending Trail Canyon affords 2-hour access into the wild middle reaches of Dark Canyon via a scenic, seldom-used, and rigorous trail. Due to its southern exposure, Trail Canyon is more typical of a high-desert canyon than are other upper Dark Canyon tributaries.
The trail traverses open pinyon-juniper woodlands beneath 800-foot cliffs, affording memorable vistas en route. The trail, which is often shadeless, can be hot, though usually not intolerable, during the summer months. This trip is a good choice for an early summer or autumn day hike."