TY - RPRT TI - Preliminary geologic and structure map of the west-central part of the Cascade Springs Quadrangle, Fall River County, South Dakota AU - Edwin V. Post AU - Norman P. Cupples PY - 1957 DO - 10.3133/tem1052 UR - https://pubs.usgs.gov/publication/tem1052 ID - tem1052 ER -