Base prepared by the Geological Survey in cooperation with the Soil Conservation Service.'; 'Compiled from USGS 1:24 000 and 1:62 500-scale topographic maps dated 1959-1972. Map edited 1978. Revised from aerial photographs taken 1974.'; 'Projection and 10 000-meter grid ticks, zone 15: Universal Transverse Mercator. 25 000-foot grid ticks based on Louisiana coordinate system, south zone.'; 'February 1980. 4-R-37370.'; Includes vicinity map.
61 x 48 centimeters