​The Fountain Hills Desert Botanical Garden is a serene 8-acre preserve nestled in the heart of Fountain Hills, Arizona, offering visitors an immersive experience of the Sonoran Desert's unique flora and geology. Established in 1975 by Jane Haynes as a wildlife preserve and botanical garden, it features a self-guided 0.8-mile loop trail that meanders through native desert plants like saguaro cacti, velvet mesquite, and ocotillo, with informative signage along the way . The trail also provides views of fascinating geological features, including granite boulders, quartz veins, and a historic dam built in 1941, as well as remnants of the old P-Bar Ranch campsite . Open daily from sunrise to sunset with no admission fee, the garden is maintained by the Sonoran Conservancy of Fountain Hills and serves as both a recreational retreat and an educational resource for desert conservation