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Placer County, California
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Map of San Diego County California issued by the State Mining Bureau Ferry Building San Francisco
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Mining locations located by red numerals. We do not have key to those numbers. Julian District is shown on submap because of the number of locations. Note the number of oil companies in the Coachilla Valley, presumably all dry holes. Submap: Julian District. MS note: 327363. Prime meridian: GM. Relief: no. Graphic Scale: Miles. Projection: Cylindrical. Printing Process: Lithography. Verso Text: MS notes: San Diego Co. (Mining Map) 1902 $7.50 $175.
327363
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Geological Map of the State of California
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A large map in two sheets with geological areas differentiated by color. Legend Geological. "Union Litho. Co. S.F." "Copyright 1916 by Fletcher Hamilton State Mineralogist." Prime meridian: GM, Washington. Relief: no. Graphic Scale: Miles, kilometers. Projection: Polyconic. Printing Process: Lithography.
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