TY - RPRT TI - Geophysical analysis of the Salmon Peak Formation near Amistad Reservoir Dam, Val Verde County, Texas, and Coahuila, Mexico, March 2006, to aid in piezometer placement AU - Gregory P. Stanton AU - Wade H. Kress AU - Andrew Teeple AU - Michael L. Greenslate AU - Allan K. Clark PY - 2007 DO - 10.3133/sir20075143 UR - https://pubs.usgs.gov/publication/sir20075143 ID - sir20075143 ER -