TY - RPRT TI - Water-resources investigations of the U.S. Geological Survey in the northern Great Plains coal region of Wyoming, Montana, and North Dakota, 1975 AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1975 DO - 10.3133/70237808 UR - https://pubs.usgs.gov/publication/70237808 ID - 70237808 ER -