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Train TT109 comes off the branch to the Jacobs Ranch mine at Black Thunder Junction and enters the inner loop of the two loop tracks at the Black Thunder mine loadout. After loading, this train will go to the Kansas City Power and Light Hawthorne power plant. Disk 81
If you would like more information on UP and BNSF coal trains, you should get my book. Look for the 2008 compendium near the bottom of the Books page.