TY - RPRT TI - Geologic and geotechnical properties of the Fort Union Formation in drill cores from the Thunder Basin National Grassland, Campbell County, Wyoming AU - D. S. Collins AU - A.T. Jenkins PY - 1979 DO - 10.3133/ofr791602 UR - https://pubs.usgs.gov/publication/ofr791602 ID - ofr791602 ER -