Mines

Coober Pedy - https://tinyurl.com/asn5ek5a

Great Lakes Salt Mine

• https://tinyurl.com/ysx3q9po

• https://tinyurl.com/1obk1l1l

Detroit Salt Mine

• http://detroitsalt.com/history

• https://tinyurl.com/3dk4lgpt

Donetsk – Worth Its Salt

• https://www.dobovo.com/blog/donetsk-worth-its-salt.html

SubTropolis

• https://en.wikipedia.org/wiki/SubTropolis

Lefdal Mine

• https://www.lefdalmine.com/underground-data-halls/

Louisville Mega Cavern

• https://en.wikipedia.org/wiki/Mega_Cavern

• https://tinyurl.com/1tqkxyxa

Homestake Gold Mine

• https://tinyurl.com/14bddyz5

• https://tinyurl.com/9lmkh80r