Salar de Uyuni in Bolivia is the largest inland salt flat. Rich salt deposits have been extracted for years, but this activity dwindled,. As a consequence, the many trains that were used for salt transport have been abandoned.
The sight of dozens of derelict trains can be seen at Uyuni, at the entrance of the Salar. They lay there, wrapped in the dust stirred by winds that sweep the surrounding wastelands, reminescent of large skeletons bearing the witness to decay.