Title
Correlation of surface sections of the intertongued Eocene Wasatch and Green River formations across the central part of the Sand Wash Basin, northwest Colorado, and eastern part of the Washakie Basin, southwest Wyoming / Department of the Interior, U.S. Geological Survey ; by Henry W. Roehler.
Published
Reston, Va. : The Survey ; Denver, CO : For sale by Map Distribution, 1989.