Nearly 20,000-acre BLM wilderness inside Mojave Trails National Monument preserving some of the cleanest free-standing sand dunes in the eastern Mojave, between CA-62 and historic Route 66 east of Twentynine Palms. Pale quartz sand piles against the Iron Mountains and Cadiz Valley floor; day-hiking and primitive camping (14-day limit) on foot from Cadiz Road—no motorized travel in the wilderness itself.
Field facts
| Region | San Bernardino County, CA |
|---|---|
| Coordinates | 34.3483, -115.3780 |
| Management | BLM Cadiz Dunes Wilderness / Mojave Trails National Monument |
| Size | ~20,000 acres wilderness |
| Access | Dirt Cadiz Road from CA-62; high-clearance recommended |
| Nearest services | Twentynine Palms / Amboy area |
Nearby locations
Nearby amenities
- TrailheadCadiz Dune East2.6 km away
- Rec areaCadiz Dunes Wilderness3 km away
- TrailheadCadiz Dune West6.6 km away
Public recreation data — BLM & Recreation.gov (RIDB). Verify current access, fees, and seasonal closures before traveling.
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