Brief Directions: Go north from Durango on U.S. 550 over Coal Bank Pass. Just before reaching the summit of Molas Pass, you will see a sign for Andrew's Lake on the right. If going south on U.S. 550 out of Silverton, Colorado you will see the sign just past the Molas Pass Summit
Notes: Molas Pass is noted as having the cleanest air in North America. Combine that with an elevation right at 12,000 feet, a polarizer is a necessity for this location.