TY - RPRT TI - Geology, structure, and coal beds of the Fort Union Formation in the eastern part of the Fort Peck Indian Reservation, Daniels, Roosevelt, and Sheridan counties, Montana AU - John K. Hardie AU - Harold H. Arndt PY - 1988 DO - 10.3133/coal122a UR - https://pubs.usgs.gov/publication/coal122A ID - coal122A ER -