We were astonished at this 15 minutes of road geology on Box Canyon Road next to the Mecca Hills. Box Canyon Road is mostly known for being the original alignment of US 60/70 when they were expanded into California. Box Canyon Road is an approximately 15.8 mile road between I-10/Cottonwood Springs Road near Chiriaco Summit which travels southwest through the Mecca Hills to Coachella Valley where it becomes 66th Avenue.