The Valley coal fields of Virginia Campbell, Marius R. (Marius Robinson) 1858-1940 creator Pederson, Fred C. Geological Survey (U.S.) text vau Charlottesville University of Virginia 1925 monographic eng
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ix, 322 p. ill., XXVII pl. (incl. fold. col. map) tables, diagrs. 26 cm. by Marius R. Campbell and others. Prepared in co-operation with the United States Geological survey. With a chapter on The forests of the Valley coal fields of Virginia, by Fred C. Pederson. Prepared in co-operation with the Office of state forester. Map folded in pocket. Bibliographical references. Coal mines and mining Virginia Forests and forestry Virginia QE173 .A2 no. 25 gs 25000034 DLC 761116 20260227111329.0 gs 25000034