Roads to either end of the trail may require high-clearance four-wheel drive or be impassable. The Cathedral Butte Trailhead is outside the park, about 18 miles down Beef Basin and Bridger Jack Road; the trail drops 1,500 feet over loose, steep ground into the canyon. Seasonal flooding and dense vegetation can make the wash difficult to follow. Mosquitoes and gnats can be prevalent from early summer through autumn. Carry enough water for your route: no dependable potable-water point is confirmed at the cabin, and spring flow can vary.