No old shelf mark. Only the northernmost portion of this map. A scrap from apparently a different printing is also included. The map portion shows only N39° to N42°. For a full copy of the map, see RB 384723. Lake Tahoe is named both Tahoe and Bigler. The key to the various mineralogical formations is also missing. Prime meridian: GM. Relief: shaded. Graphic Scale: Miles. Projection: Cylindrical. Printing Process: Lithography. Verso Text: MS note: Preliminary Mineralogical and Geological Map of California 1891.
Extent
1 map ; printed col. ; 48 x 52 cm., sheet 54 x 72 cm.
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