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On December 2, 1975 engine 3126 leads train 148 around the curve at Thistle and begins the climb up to Soldier Summit. In 1912 the railroad added six miles of second track between Thistle and Detour.
On a much warmer day (June 4, 1978), engine 3007 has run out of water and is shut down. The train is stopping at Thistle and the crew will try to refill the cooling system.
Water leaks out of the 3007 as fast as they can put it in, so after a brief conference with the dispatcher, it is decided to pull train 142 forward to clear the train behind it and the dispatcher calls for a helper to meet the under powered train at Rio. Train 142 is crawling out of Thistle and will stop beyond the cross-over at Rio. Depending on which western connecting railroad held the contract, this train originated on the Western Pacific as the APX or the Southern Pacific as the BAESF. It handled mostly TOFC, autos, and perishables. This was the counterpart to the westbound Ford Fast. Disk 30