TY - RPRT TI - Evaluation of coal resources in the eastern part of the Fort Peck Indian Reservation, Montana AU - Laura H. Biewick AU - J.K. Hardie AU - H.H. Amdt PY - 1990 DO - 10.3133/b1869 UR - https://pubs.usgs.gov/publication/b1869 ID - b1869 ER -