Arcadian, Concord, Franklin, Franklin Junior, Hancock, Rhode Island Mines The Arcadian Mine An underground copper mine consisting of seven shafts and two adits near Ripley. The original Arcadian Mining Company was organized in 1864, then reorganized as the Arcadian Copper Company in 1898 after the consolidation of the Edwards, Douglas, Concord, Highland, St. Mary's, and Arcadian mines. After ...