TY - RPRT TI - Bedrock geologic map showing the configuration of the bedrock surface, McCook 1 degree by 2 degrees Quadrangle, Nebraska and Kansas, and part of the Sterling 1 degree by 2 degrees Quadrangle, Nebraska and Colorado AU - D.A. Eversoll AU - V. H. Dreeszen AU - R.R. Burchett AU - G.E. Prichard PY - 1988 DO - 10.3133/i1878 UR - https://pubs.usgs.gov/publication/i1878 ID - i1878 ER -