Telegraph Canyon Trail Professional Review and Guide
"This interesting and challenging trail can be combined with many other trails in the region to make a full day’s travel. The trail’s main challenges come, first, from the rocky sections at the start of the trail as it proceeds toward Telegraph Canyon and, second, from a narrow pathway between the edge of the shelf road and some deep washouts. In between these sections, the trail is interesting driving, but of a more moderate standard.
Special Attractions: Extremely narrow, deep Box Canyon; Moderate rock crawling section within the canyon; Varied desert views. High-clearance 4WDs are required. This trail has either a rough, rutted surface, rocks up to 9 inches, mud and deep sand that may be impassable for inexperienced drivers, or stream crossings up to 18 inches deep. Certain sections may be steep enough to cause traction problems, and you may encounter very narrow shelf roads with steep drop-offs and tight clearance between rocks or trees."