TY - RPRT TI - Evaluation of the hydrologic system and potential effects of mining in the Dickinson lignite area, eastern slope and western Stark and Hettinger counties, North Dakota AU - C. A. Armstrong PY - 1984 DO - 10.3133/wri844194 UR - https://pubs.usgs.gov/publication/wri844194 ID - wri844194 ER -