Arizona Department of Environmental Quality (ADEQ)
Arizona Department of Health Services (ADHS)
Arizona Department of Transportation (ADOT Environmental Determination Guidelines)
Arizona Department of Water Resources (ADWR)
City of Tucson Environmental Services - Engineering & Technical Support
The New Mexico Environment Department
Arizona Game & Fish Department
National Park Service- Tuzigoot National Monument (Tavasci Marsh)
U.S. Department of the Interior Bureau of Land Management
Environmental Assessment Association (EAA)
American Society for Testing & Materials (ASTM)
Environmental Professional's Homepage
Peregrine Fund Northern Aplomado Falcon Restoration
Texas Parks & Wildlife
Pima County Sonoran Desert Conservation Plan
Fish & Wildlife Service
Forest Guardians’ Description of Aplomado Falcon
Biospeleology; The Biology of Caves, Karst, and Groundwater
Grottos of the Southwestern Region
National Speleological Society
University of California, Berkeley-Museum of Paleontology
NATIVE PLANTS