TY - RPRT TI - Geographic information system data sets of hydrogeologic conditions in Pequea and Mill Creek watersheds, Pennsylvania: Part I — Basic data AU - Diana L. Dugas AU - Stephen J. Char AU - Gary E. Baumbach PY - 1995 DO - 10.3133/ofr95113 UR - https://pubs.usgs.gov/publication/ofr95113 ID - ofr95113 ER -