Anza-Borrego Desert in Borrego Springs, California: Colorado Desert Segment of the Sonoran Desert, Anza-Borrego Desert; State Park headquartered in Borrego Springs, California.
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.
Desert Foothills Land Trust - Sonoran Desert Preservation: Works for land preservation in the unique and fragile Sonoran desert foothills area of central Arizona.
Sonoran Desert: Links to various articles by Felice Prager about javelinas, cactus, scorpions, rattlers, desert safety, emergency preparedness, gila monsters, arachnids and the beauty of the Sonoran Desert.
The Sonoran Desert - DesertUSA: Description of desert, minerals and geology, culture and history, plants and wildlife provided.