San Francisco. California State Mining Bureau. 1908.
Two-color map, 37 1/2 x 27 1/2 inches, folding as issued to. A few short splits to folds, some soft creasing, otherwise very good, clean condition. Large and detailed map of California with red dots highlighting copper deposits found throughout the state. "Under the Direction of Lewis E. Aubury, State Mineralogist". Scale: 20 miles per 1 inch. Item #46557