TY - RPRT TI - Geologic framework and hydrostratigraphy of the Edwards and Trinity aquifers within northern Medina County, Texas AU - Allan K. Clark AU - Robert E. Morris AU - Diana E. Pedraza PY - 2020 DO - 10.3133/sim3461 UR - https://pubs.usgs.gov/publication/sim3461 ID - sim3461 ER -