Base source: USGS county base map dated 1975; interpretations derived from soil map constructed 1970.; "Projection and 10,000-metre grid ticks, zone 14: Universal Transverse Mercator. 25,000-foot grid ticks based on North Dakota coordinate system, north zone."; Apr. 1980.; Includes location map. 66 x 92 centimeters Scale 1:100,000; 1 cm. = 1 kilometer