Wyoming Powder River coal - Up strip wyoming
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This UFO landing strip was created by a charitable Wyoming city that was worried Sign up for our newsletter and get the best of Atlas Obscura in your inbox. The Black Thunder Coal Mine is a surface coal mine in the U.S. state of Wyoming, located in Draglines are not used to dig coal but only strip overburden. In , the Black Thunder Mine dug up an estimated million tons of coal.