Hanna Basin Museum
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​1941 - 1941: The Earl Johnson Coal Company's Carbon County mine at Hanna, Wyoming

Notes from Bob Leathers

The Earl Johnson Coal Company's Carbon County mine was opened in 1941 and abandoned the same year. The mine produced 4,044 tons of coal with 5 workers. No deaths were found for the mine.

Hanna Basin Museum Website – A Connection To The Past