Valle de la Muerte
A sand-floored canyon in the salt range whose grim name is probably a mishearing of Mars.
Updated 30 August 2026
The Valle de la Muerte cuts into the Cordillera de la Sal just outside San Pedro, a narrow valley of red rock walls with a floor of fine sand, and its name is a long-running argument: the Belgian priest and archaeologist Gustave Le Paige is usually credited with calling it Valle de Marte, the Mars valley, for the colour and the terrain, with the name later mangled into Muerte by Spanish speakers - the version told locally, and not documented beyond that. The big dune on its western side is used for sandboarding, and the valley is close enough to San Pedro to be cycled to.
What's there
- Red walls and a sand floor - a narrow cut in the salt range.
- A name that may be a mishearing - Marte turning into Muerte.
- A large sandboarding dune - on the western side.
- Close enough to cycle - a few kilometres from San Pedro.
When to go
Year round, late afternoon for the light and the temperature. Half a day.
Things to know
Sandboarding is harder and more tiring than it looks - the climb back up the dune is the work. There is no water or shade. Access is ticketed and timed. The heat in the middle of the day is serious.
Nearby
Valle de la Luna adjoins it; San Pedro is minutes east.
Key facts
Source: Wikidata, item Q125545010, read on 18 October 2026.
What to pack for Valle de la Muerte
Chosen from what this place is for. Tap a kit for the full checklist.
- Broken-in walking shoes or boots - Grip and ankle support matter more than looks; never hike in brand-new boots. Find on Amazon
- Loose, light, long clothing - Covering up beats bare skin in the desert - and locals dress this way for a reason. Find on Amazon
- Layers + a waterproof shell - Mountain weather turns fast; a packable rain jacket saves the day. Find on Amazon
- A wide-brim hat + sunglasses - Shade for your face and eyes where there is none overhead. Find on Amazon
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