Coppertown Mining Museum In September, 2013, work started on a 3-story addition to the Mining Heritage Center. The addition now houses exhibit space, a new wood and steel shop, and curation and restoration area for working on our collections, and far needed cupboard space. Our mining heritage has been http://arthurj0un5.link4blogs.com/26594037/a-new-twist-for-wet-rock-dusting