A mine just reopened in eastern Utah, but the industry has changed.
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WTF happened in the 80s?
I couldn’t find anything specific to the 1980s, but this graph shows that coal production was rising betwen 1940 and 2008. Apparrently, they needed less and less workers for even more output.
Edit: source
It’s probably when those giant ass dump trucks and automation began to take over as technology progressed.
