Geological map of the Mother Lode Belt in El Dorado & Amador Counties, California : compiled by Henry Lahiff Civil Engineer U.S. Deputy Mineral Surveyor
No old shelf mark. There are two copies of this map in the same folder. One copy notes on verso there were originally three copies. Identical except for the verso note. Description of mining techniques. Prime meridian: GM. Relief: no. Graphic Scale: Miles. Projection: Cylindrical. Printing Process: Lithography. Verso Text: MS note: California. "The Mother Lode Belt." El Dorado and Amador Counties Geological Map (3 copies).
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