MARCH 1983 4-R-38176-1, 4-R-38176-2, 4-R-38176-3.; Interpretations derived from soil map constructed1977 by Soil Conservation Service, USDA, of Big Horn County Area, Montana.; Universal transverse mercator.; Location diagram and index map.; Compiled by USGS from 1:24 000-scale topographic maps dated 1958 - 1972. 66 x 108 centimeters or smaller Scale 1:100,000