TY - RPRT TI - Potential effects of surface coal mining on the hydrology of the West Otter area, Ashland and Birney-Broadus coal fields, southeastern Montana AU - N. E. McClymonds PY - 1984 DO - 10.3133/wri844087 UR - https://pubs.usgs.gov/publication/wri844087 ID - wri844087 ER -