Early oilfield exploration in Pennsylvania, ca. 1862Early oilfield exploration in Pennsylvania, ca. 1862.
Mining on the Comstock“Mining on the Comstock.” T.L. Dawes drawing, engraved and printed by LeCount Bros., San Francisco, 1877.
W. Rose’s Revised Chart of the Comstock Mines and Sutro Tunnel“W. Rose’s Revised Chart of the Comstock Mines and Sutro Tunnel.” Map compiled and drawn by W. Rose, published by…
