Map showing resources of coarse aggregate, Springfield South Quadrangle, Massachusetts-Connecticut

Washington, D.C. : The Survey, 1973

Map showing resources of coarse aggregate, New Britain quadrangle, Connecticut

by Langer, William H.
[Washington, D.C.] : The Survey, 1974

Map showing resources of coarse aggregate, Broad Brook quadrangle, Connecticut

by Langer, William H.
[Washington, D.C.] : The Survey, 1973

Map showing resources of coarse aggregate, New Hartford quadrangle, Connecticut

by Schnabel, Robert W.
[Washington, D.C.] : The Survey, 1974

Map showing resources of coarse aggregate, Tariffville quadrangle, Connecticut-Massachusetts

Washington, D.C. : The Survey, 1973