This is a continuation of a trip I took to W7O/CM-132 during which I also
went to Sand Mountain, W7O/CM-077. Proceed as mentioned in the other blog
entry for W7O/CM-132, but before reaching the Big Lake Campgrounds turn
off FS 2690 onto FS 810, the Old Santiam Wagon Road. Road 810 is open to
mountain-bikes and apparently from the signage is also an active OHV area.

Take road 810 about 3 miles (estimated) until a road leads off to the left
marked with a sign denoting the Sand Mountain Special Geological area. Take