Anza-Borrego Desert in Borrego Springs, California
- Colorado Desert Segment of the Sonoran Desert, Anza-Borrego Desert; State Park headquartered in Borrego Springs, California.
- http://home.znet.com/kat/

The Sonoran Desert - DesertUSA
- Description of desert, minerals and geology, culture and history, plants and wildlife provided.
- http://www.desertusa.com/du_sonoran.html

Desert Foothills Land Trust - Sonoran Desert Preservation
- Works for land preservation in the unique and fragile Sonoran desert foothills area of central Arizona.
- http://www.dflt.org/

Arizona-Sonora Desert Museum
- A world-renowned zoo, natural history museum and botanical garden. Research and education programs and exhibits on the Sonoran desert region.
- http://www.desertmuseum.org/