Before revision: Nevada Arizona Utah: The Wasatch Range and Tintic Mountains Montana Colorado Alaska West Virginia See also Mining Speleology Mine rescue References External links Mine Exploration and Hiking with Tom and Julie - Abandoned mine exploration in the Western U.S.
After revision: Nevada Arizona Utah: The Wasatch Range and Tintic Mountains Montana Colorado Alaska West Virginia See also Mining Speleology Mine rescue References External links Abandoned Mine Exploring with Tom and Julie - Abandoned mine exploration in the Western U.S.