![File:Postcard - Wyodak Coal Mine, Gillette, Wyoming "Largest Open Strip Mine in the World" (front).jpg - Wikipedia File:Postcard - Wyodak Coal Mine, Gillette, Wyoming "Largest Open Strip Mine in the World" (front).jpg - Wikipedia](https://upload.wikimedia.org/wikipedia/commons/d/dc/Postcard_-_Wyodak_Coal_Mine%2C_Gillette%2C_Wyoming_%22Largest_Open_Strip_Mine_in_the_World%22_%28front%29.jpg)
File:Postcard - Wyodak Coal Mine, Gillette, Wyoming "Largest Open Strip Mine in the World" (front).jpg - Wikipedia
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Laid off coal miners on their own after fueling Wyoming economy for decades | News | wyomingnews.com
Wyoming's coal-fired economy is coming to an end (Coal state struggles) — High Country News – Know the West
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