You searched for: Collection University of Michigan Herbarium Catalog Collection Remove constraint Collection: University of Michigan Herbarium Catalog Collection 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