TY - RPRT TI - Map showing upper Cenozoic rocks and deposits and Quaternary faults, Rio Grande rift, south-central Colorado AU - Steven M. Colman AU - James P. McCalpin AU - Dean A. Ostenaa AU - Robert M. Kirkham PY - 1985 DO - 10.3133/i1594 UR - https://pubs.usgs.gov/publication/i1594 ID - i1594 ER -