TY - MAP ID - 137318623 TI - Geologic map and sections of the Hill City quadrangle, Pennington County, South Dakota AU - Ratté, James Clifford AU - Wayland, R. G. PY - 1969 PB - Washington (D.C.) U.S. Geological Survey DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:137318623 AB - ER -