Fossil Mountain Location Map Use the zoom and scroll controls to see details. You can also click on the map and drag it.   Driving Directions From Delta, drive southwest on US Hwy 6/50 for about 51 miles to the road leading south through Blind Valley. Follow that road southwest and then south for 12.5 miles to a spur which heads west to the north side of Fossil Mountain. From the turnoff you can clearly see the mountain. The spur road leads into a wash that defines the north edge of the mountain. Drive to the end of the spur road and then start looking for fossils in the wash and on the mountainside.