Facility · California ·
Managed by the Bureau of Land Management
El Centro Field Office (Bureau of Land Management CA) · Open Access

The Wilderness is divided into two distinct zones. On the west side are the primary dunes, the largest and tallest dunes composed of relatively coarse sand. On the east are the secondary dunes, smaller and composed of generally finer sands carried further east by prevailing winds.
A parking area with access to the wilderness site is a perfect place to discover a variety of plant and animal species.
Visitors are welcome to walk or ride horses in this remote area. The wilderness is closed to all vehicles and mechanized use.
33.03150, -115.18241 · 33°1'53.4"N 115°10'56.7"W
Typically 108°F in Jul, down to 70°F in Dec.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F | 72 | 75 | 81 | 87 | 95 | 104 | 108 | 108 | 104 | 93 | 80 | 70 |
| Low °F | 41 | 45 | 50 | 54 | 61 | 68 | 77 | 78 | 71 | 60 | 49 | 41 |
| Precip in | 0.5 | 0.5 | 0.3 | 0.1 | 0.0 | 0.0 | 0.0 | 0.1 | 0.1 | 0.1 | 0.2 | 0.5 |
1991–2020 averages from the nearest NOAA station, 22.4 mi away — not measured at the facility itself, and elevation can make a real difference over that distance.
Recreation.gov last updated this record on 2026-02-25.
Facility information and photographs from Recreation.gov (RIDB). SpotOpened is not affiliated with Recreation.gov or any federal agency.
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