1. Peak-flow frequency and extreme flood potential for streams in the vicinity of the Highland Lakes, central Texas Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Denver, Colorado : Earth Science Information Center, Open-File Reports Section Resource Type: Map Access & Availability: Loading
2. Potentiometric surface of the principal alluvial aquifers in the Rio Espiritu Santo to Rio Demajagua area, Puerto Rico, March 23-24,1994 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 1996 Resource Type: Map Access & Availability: Loading