West of Cheyenne, UP has four main tracks (for a distance). Mains 1 and 2 follow a very different grade from Mains 3 and 4. The latter go to Speer Jct toward the Greeley Sub and the single main track (Main 3) that goes to Dale Jct. Here, the Cheyenne Frontier Days train backs down from Speer Jct on Main 3.
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