mapped, edited, and published by the Geological Survey, revised in cooperation with Massachusetts Department of Public Works.Geological Survey[1979]<YG1-U-RI-2.4-6767-4-SE>
mapped, edited, and published by the Geological Survey, revised in cooperation with Massachusetts Department of Public Works.Geological Survey[1979]<YG1-U-RI-2.5-6767-4-SE>