1981. United States. Soil Conservation Service. Shows land use.; Relief shown by hachures.; Sheet 1 shows western portion.; "February 1981."; Includes vicinity map. 49 x 166 centimeters; 57 x 87 ... The Service (Spokane, Wash.?).
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1981. United States. Soil Conservation Service. Shows land use.; Relief shown by spot heights.; "March 1981."; Includes vicinity map. 56 x 85 centimeters Scale 1:100,000. The Service (Spokane, Wash.?).