%0 E-Resource %0 Map %0 U.S. Federal Government Document %E Geological Survey (U.S.) %I U.S. Dept. of the Interior, U.S. Geological Survey %D 2010 %C Reston, Va. %G English %T Mouth of Rio Grande quadrangle, Texas--Tamaulipas 7.5-minute series %U http://purl.fdlp.gov/GPO/gpo4219