Geologic and structure map, with contours on top of the Pierre Shale, for the south half of the Powder River basin, northeastern Wyoming

I-2343-B Geologic and structure map, with contours on top of the Pierre Shale, for the south half of the Powder River basin, northeastern Wyoming, scale 1:200,000, 1993, ISBN 978-0-607-79511-0 Keywords: Powder river basin, Stratigraphic Geology, Stratigraphy, Geologic maps