USGS Open-File Report 2005-1231

Index Map for the Study Area of the U.S.-Mexico Border Environmental Health Project

The study area is in the Rio Grande valley in southern Texas and northeastern Mexico and the inset figure shows the general location outlined in red. The index map shows the study area outlined in red and highlighted in pale green. Some of the larger population centers are shown as white ovals outlined in black.

 

Index map of study area for the U.S.-Mexico Border Environmental Health Project.

 

Geologic Setting

 

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