TY - RPRT TI - Map showing spatial and temporal relations of mountain and continental glaciations on the Northern Plains, primarily in northern Montana and northwestern North Dakota AU - David S. Fullerton AU - Roger B. Colton AU - Charles A. Bush AU - Arthur W. Straub PY - 2004 DO - 10.3133/sim2843 UR - https://pubs.usgs.gov/publication/sim2843 ID - sim2843 ER -