-
1by Wood, Gordon H. (Gordon Harry), 1919-“...Geologic quadrangle map ;...”
Published 1968
Government Document Map -
2by Trexler, J. Peter, 1926-“...Geologic quadrangle map ;...”
Published 1968
Government Document Map -
3Geologic map of the Tower City quadrangle, Schuylkill, Dauphin, and Lebanon counties, Pennsylvania /by Wood, Gordon H. (Gordon Harry), 1919-“...Geologic quadrangle map ;...”
Published 1968
Government Document Map