TY - RPRT TI - Mineral resource potential map of the Rock Pile Mountain Wilderness Study area, Madison County, Missouri AU - Walden P. Pratt AU - Ralph L. Erickson AU - Clarence Ellis PY - 1982 DO - 10.3133/mf1339b UR - https://pubs.usgs.gov/publication/mf1339B ID - mf1339B ER -