Atocha
Sourced from Wikivoyage. Text is available under the CC-by-SA 3.0 license.
Get in
Either by train from Uyuni/Oruro, or from Tupiza/Villazon, or by bus from Uyuni or Tupiza. The latter options offers much more scenery, well above 4000 m.
Get around
All walkable.
See
Just suck in the atmosphere of a genuine Bolivian mining gulch. No tourists here.
Eat
Many small eateries.
Sleep
Several simple inns.