Easy drive off of Mono Mills Road (Route 120)...
Follow Granite Mountain Wilderness Road (an unmarked dirt road) to a really cool camping spot in Granite Basin. A short walk through a maze of rock formations and pines will lead you to the cache.
You'll be looking for a 6" wide metal tin, with a logbook & pen plus a few cool trade items for your fair trading pleasure. 
Good luck & Happy caching!
