Map fragment. At head of title: U.S. Geological Survey, George Otis Smith, Director R.B. Marshall, chief geographer. Shows drainage, railroads, national forests, Indian reservations, etc. Shows Isohyetose Lines, apparently lines of equal yearly precipitation. Prime meridian: GM. Relief: no. Graphic Scale: Miles, kilometers. Projection: Polyconic. Printing Process: Lithography.
Extent
1 map ; printed col. ; 100 x 55 cm., sheet 110 x 59 cm.
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