1869: The Union Pacific's ​No. 3 and No. 4 Mines at Carbon, Wyoming

Page by Bob Leathers
The Union Pacific's Carbon No. 3 and No. 4 Underground Mines were test mines developed in 1869. The only coal produced was an amount sufficient to locate and prove the coal seam. No fatalities were found in the No. 3 or No. 4 Mines.

Union Pacific's Carbon No. 3 and No. 4 Mine Maps

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Map of Carbon Mines, which include the No. 3 and No. 4 Mines. (Map Collection from the Hanna Basin Museum)
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Mine Map showing the location of the Union Pacific Carbon No. 3 Mine (Map Collection from the Hanna Basin Museum Website)