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​1888 - 1891: The Union Pacific Coal Company’s No. 1 mine at Dana, Wyoming 

Notes by Bob Leathers

​​The Union Pacific Coal Company’s No. 1 mine in Dana was opened for production in 1888 and abandoned in 1891. The average pitch of the coal seam was 26 degrees. The slope pitch was 16 degrees. Parts of the mine ran directly under the Union Pacific Railroad's main tracks.  The mine produced over its lifetime 62,792 tons of coal with a peak work force of 142 workers in 1890. One documented  miner was killed in the Dana mine and one miner was killed in the Miller mine.

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Union Pacific Coal Company Employe's Magazine, August 1925)

Union Pacific Coal Company's Dana No. 1 Mine Map

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Union Pacific Coal Company Map showing the location of the Union Pacific Railroad's main tracks with respect to the Dana workings (Map Collection from the Hanna Basin Museum Website)
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A 1949 Survey of the Dana Coal Mine Workings that took place under the Union Pacific Railroad Tracks (Map Collection at the Hanna Basin Museum Website)

Hanna Basin Museum Website – A Connection To The Past