01158cam a22002891 4500 gs 65000272 DLC 20260227111417.0 780308s1965 dcua f000 0 eng c gs 65000272 (OCoLC)3696601 U. S. Geol. Survey. Libr. USlW ISS OCoLC DLC premarc QE75 .P9 no. 484 I 19.16:484 Hack, John T. (John Tilton), 1913-1991. Geomorphology of the Shenandoah Valley, Virginia, and West Virginia, and origin of the residual ore deposits, by John T. Hack. Washington, U.S. Govt. Print. Off., 1965. iv, 84 p. illus., maps (3 fold. col in pocket) 30 cm. Geological Survey (U.S.). Professional paper 484 Bibliography: p. 77-79. Geology Shenandoah River Valley (Va. and W. Va.) Physical geography Shenandoah River Valley (Va. and W. Va.) Ore deposits Shenandoah River Valley (Va. and W. Va.) Shenandoah Valley, Virginia and West Virginia Origin of the residual ore deposits 30057 30057