salt mines

The vast mineral mine in the Atacama desert looks from space
The photo was taken on June 26, 2019 in a special area of the Tarapaca region in northern Chile, where the largest caliche mines (or Chilean matches) can be found.
The cave salt preserved the body of the whole person 2,200 years
Salt caves are located in northwestern Iran, near the villages of Hamzehli, Mehrabad and Chehrabad, Zanjan province.
Rare photos of strange rock salt mines located deep in the bottom of the lake
Located 600m above the ground, under Lake Erie in Ohio, USA, the Morton salt mine is considered a wonder of beauty as well as a strange way of exploitation.