Time: 6 hours round trip. Difficulty: Extremely Difficult Elevation Gain: 1,580 ft (482m) Location: An unmarked gravel access road is located on Badwater Road 31.5 miles south of CA-190 between mile markers 31 & 32. The access road is less than 0.5 miles (0.8km) long and is typically passable to a sedan. Parking: Open gravel area large enough for buses and RV" s.="" same="" location="" as="" willow="" canyon.