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Cross sections showing stratigraphic framework of upper Cretaceous Dakota Sandstone, Mancos Shale, Mesaverde Group, and Mesaverde Formation, and lower Tertiary Wasatch Formation, west-central Piceance Basin, Garfield County, Colorado

Cross sections A-A' and B-B' show the stratigraphic framework of Upper Cretaceous rocks in part of the Piceance basin, northwestern Colorado.  This Laramide basin is asymmetric in shape and has a gently dipping western flank and a steeply dipping eastern flank.  The basin is bounded by the Uinta uplift to the northwest, the Douglas Creek arch to the west, the Axial Basin uplift to the north, the W