The Michigan basin and the great lakes area (since there are also huge salt mines in Canada), used to be part of a sea which sank into the earth.
The salt mine was used to mine table salt, but with the decline in salt prices the mine is now used to mine road salt for winter. It’s the case in Detroit, where just 1200 Feet below there is a salt mine that can easily shelter the entire population of Detroit! Actually, it can shelter over 5 million people. Sometimes the shelter is so close that is right below your feet. But they will protect you only from the nuclear blast and the initial radiation burst. Keep in mind that these bunkers are all naturally EMP hardened. Only a handful of preppers can afford a $ 70k nuclear bunker.īut if you think about it, there are a lot of natural nuclear shelters in the US that are absolutely free.Īll you need to do is to identify the closest one to your home and maybe include it into your bug out plan in case a nuclear war is looming (or an asteroid impact).
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