TY - RPRT TI - Cross section A-A' of Upper Cretaceous and lower Tertiary rocks, southern Piceance Creek basin, Colorado AU - R. C. Johnson AU - M.P. Granica AU - N.C. Dessenberger PY - 1979 DO - 10.3133/mf1130a UR - https://pubs.usgs.gov/publication/mf1130A ID - mf1130A ER -