You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Big Bend National Park; 1-2 miles along Telephone Canyon Trail from Roy'€™s Peak trailhead to old dam; rocky slopes and draws below Alto Relex Remove constraint Place: Big Bend National Park; 1-2 miles along Telephone Canyon Trail from Roy'€™s Peak trailhead to old dam; rocky slopes and draws below Alto Relex