Lundy Canyon is a gorgeous site just northwest of Mono Lake. The canyon itself has about 10 separate mines through out the canyon, all of which are fantastic exploring. Our favorite is the May Lundy Mine.
The May Lundy mine is accessed via an old jeep trail. While Cat and I hiked the 3 1/2 miles to the mine the "jeeper" in Cat was navigating the trail. She only deemed one spot "sketchy" the rest she thought would be a great trail! However, this site is accessed strictly by foot, the forest service has gated the entrance.