We think this is the east side of Montana Mountain, which is the mine of what is now called Ruby. It's main element was lead, but it also contained silver, gold and copper.
After being on the very windy roads for a very long time and only seeing Border Patrol trucks, Jim said, "Well, I've never been to Ruby. We can stop there." We did see how many more miles and that number kept decreasing, so that was encouraging! Once we found Ruby and saw the sign that said it was $12 to enter it!!!! We skipped Ruby. We since heard that hippies used to meet potential visitors at the gate with shotguns! Now they keep people out with a paid admission!