This is an absolutely phenomenal experience. You will go through one of the most active mines in the state, Tomboy Townsite, at Savage Basin. There is a lot of debris in the area and it is on private property. Take care to stay on the route. Unlicensed vehicles aren't allowed on the lower half of south side, but can start the trail further on. The road is open from May 16 to November 30. Snow may be blocking the road through early July.
Work at the Tomboy Mine began in the 1880s and continued until 1927. The mine was a rich producer of gold, and at one time 900 people lived in Savage Basin, the large glacial cirque below the mine. Many people lived there all year long, and snow tunnels were the only way to get around during the long, cold winters. A fascinating book, Tomboy Bride by Harriet Fish Backus, wife of an assayer, tells what it was like to live in the camp.