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[Geological sketch maps of portions of southern California]
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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.
139326
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Geological map of the Mother Lode Region : prepared in 1890 for the California State Mining Bureau / by H. W. Fairbanks, B.S. Field Assistant
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A map from El Dorado County to Mariposa County in five strip sections, each section showing mines within that county, and a key with mine names and geological formations. Tables: Geological formations and mine names. MS note: 3682. Prime meridian: GM. Relief: no. Projection: Plane. Printing Process: Lithography. Verso Text: MS note: Map of Mother Lode Cal.
3682
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Geological map of the State of California : issued by State Mining Bureau compiled under the direction of Fletcher Hamilton, State Mineralogist / geology by James Perrin Smith
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The Mother Lode is shown as a thin red line. Legend Geological. Prime meridian: GM. Relief: no. Graphic Scale: Miles, kilometers. Projection: Cylindrical. Printing Process: Lithography. Verso Text: MS note: 8580 Sticker: Map rolled California 8580 N. W. Corner main floor.
8580
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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