Federal Agencies
Geodata.gov- U.S. Maps & Data
United States Geological Survey- The National Map
Environmental Protection Agency, Region VI
United States Geological Survey- U.S. – Mexico Border Environmental Health Initiative (BEHI)
State Agencies
Texas Natural Resource Information System
Texas Commission on Environmental Quality
Arizona Department on Environmental Quality
New Mexico Water Resources Research Institute
New Mexico Environment Department
Local Government
Paso del Norte Watershed Council