1. Well stratigraphy and correlations, western Washington and northwestern Oregon Author/Creator: Rau, Weldon W. Publication/Creation: Denver, CO : Information Services [distributor]. Resource Type: Map Access & Availability: Loading
2. West-east stratigraphic transect of Cretaceous rocks in the northern Rocky Mountains and Great Plains regions, southwestern Montana to southwestern Minnesota Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by U.S. Geological Survey Information Services Resource Type: Map Access & Availability: Loading