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The photograph to the left is of a DOSCO roadheader, a type of continuous miner that can be used to bore tunnels. It is electrically powered. The unit was used in a tunnel boring test project on Green Mountain near Jeffrey City, Wyoming. This photograph shows the DOSCO roadheader set up at the mouth of the Jackpot Mine portal. This photograph is courtesy of Kennecott Uranium Company. |
| This photograph, taken in front of the Big Sheep Mine, is a closeup of a Joy continuous miner. This piece of equipment can, like the DOSCO roadheader, be used to continuously dig tunnels. This photograph was taken by George Worman of Kennecott Uranium Company. | |
