The Mojave National Preserve is an incredible destination in itself, a patchwork of sand dunes and Joshua Trees ... The Mojave Desert Lava Tube was formed when volcanic activity caused lava ...

Mojave Desert 5. Gobi Desert 6. Thar Desert 7. Sonoran Desert 8. White Desert 9. Simpson Desert ... These stunning sand dunes ...

Covering more than 25 million acres — about a fourth of California — the geologically diverse California Desert Conservation Area includes sand dunes, canyons ... and establishing the 1.6-million-acre ...