- Environmental Protection Agency
- Texas Commission on Environmental Quality
- Texas Natural Resources Information SystemÂ
- Permitting, Registrations, and Reporting
- Extension Bookstore
- National Weather Service
- Land-Use Trend Web Tool
- Soils
- Rural Land
- Status of Working Lands
- What’s in My Water?
- Surface Water Information
- Water Facts
- TEXNAT – Texas Natural Resources ServerGeospatial Data Gateway
- National Oceanic and Atmospheric Administration
- US Geological Survey
- Water and Wetlands
- Wildlife
