Joshua Tree, California
33°51′N, 116°18′W
San Bernardino County, southern California — high desert at the junction of the Mojave and Colorado deserts, elevation 800–1,200 m; gateway to Joshua Tree National Park
[from the public record]
33.8500, -116.3000 · view on OpenStreetMap →
What's documented
Joshua Tree is an unincorporated community in San Bernardino County, California, at the northwest entrance to Joshua Tree National Park (1.24 million acres, designated National Park 1994; previously National Monument 1936). The area sits at the transition between the higher-elevation Mojave Desert and the lower Colorado Desert. The Mojave region around Joshua Tree has hosted an unusually concentrated set of mid-20th-century 'contactee' figures, most notably George Van Tassel, who operated the Giant Rock retreat north of Yucca Valley from 1947 to 1975 and built the Integratron (1957) — a wooden, multi-resonant-chamber structure intended for 'cellular rejuvenation,' still standing and open as a sound-bath venue. Van Tassel's Giant Rock Spacecraft Conventions (1953–77) drew crowds of up to 11,000 and were the principal U.S. contactee gathering of the period. The broader region (Joshua Tree, Yucca Valley, Twentynine Palms) has accumulated a substantial later body of esoteric, New Age, and UAP reporting; its proximity to the Marine Corps Air Ground Combat Center at Twentynine Palms places it within an active military airspace.