8 miles in, the road drops into the wash and becomes rocky and rough. One mile past the end of the first narrows, a side road leads up Marble Canyon. To access this road, travel 13 miles south on the Greenwater Valley Road from the paved Dante's View Road. The road ends at the spring in Willow Canyon. Follow the south fork of the canyon to road's end, downstream from Hanaupah Springs.
Hikers can continue past tile end of the road.
The road begins 5.5 miles east of Furnace Creek Inn on Hwy. 190 and traverses east up a rugged gravel wash. From Teakettle Junction the road becomes rougher and high clearance is required. The main road continues through Hidden Valley passing several abandonded mining areas on the way to Hunter Mountain. From here it is another 23 miles to Hwy.