1. Regional stratigraphic cross sections of Cretaceous rocks from east-central Arizona to the Oklahoma Panhandle Author/Creator: Geological Survey (U.S.) Publication/Creation: [Reston, Va.] : The Survey, 2001 Resource Type: Map Edition: Version 1.0, last modified 5 Dec. 2001. Access & Availability: Loading
2. Stratigraphic cross section of Cretaceous rocks along the north flank of the Unita Basin, northeastern Utah, to Rangely, northwestern Colorado Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading