11. Time of travel of solutes in Buffalo Bayou and selected tributaries, Houston, Texas, August 1999 Author/Creator: Geological Survey (U.S.) Publication/Creation: [Denver, CO] : [For sale by Branch of Information Services]. Resource Type: Map Access & Availability: Loading
12. Time of travel of solutes in the Sabine River Basin, Texas, August-November 1996 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Austin, Texas : U.S. Department of the Interior, U.S. Geological Survey, 1997 Resource Type: Map Access & Availability: Loading
13. Trends and fluctuations in the potentiometric surface of the Floridan aquifer, West-central Florida 1961-1980 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Tallahassee, Florida : Department of the Interior, United States Geological Survey, 1983 Resource Type: Map Access & Availability: Loading