TY - RPRT TI - Bedrock geology and hydrostratigraphy of the Edwards and Trinity aquifers within the Driftwood and Wimberley 7.5-minute quadrangles, Hays and Comal Counties, Texas AU - Allan K. Clark AU - Robert R. Morris PY - 2017 DO - 10.3133/sim3386 UR - https://pubs.usgs.gov/publication/sim3386 ID - sim3386 ER -