TY - RPRT TI - Effects of historical coal mining and drainage from abandoned mines on streamflow and water quality in Bear Creek, Dauphin County, Pennsylvania — March 1999–December 2002 AU - Jeffrey J. Chaplin PY - 2005 DO - 10.3133/sir20055042 UR - https://pubs.usgs.gov/publication/sir20055042 ID - sir20055042 ER -