I found this history of the Camp Smith. In the third paragraph of section 1 Terrain, the copper mine is said to be across the street on Roa Hook Road. Is this McCoy's Gold Mine? Why is it mentioned as a "Main historical and geographic points of interest", when it lies outside the bounds? Is this McCoy's Gold Mine? I doubt it because Roa Hook was never part of the camp and the McCoy property was on the other side where Camp Smith is now. The military also fails to mention the silver mines on Manitou Mtn- Could they be the "real McCoy"?
http://dmna.ny.gov/a_history/smithhistory.htm