Inside Billies Mountain
The Thistle Tunnels are twin bores under Billies Mountain in Utah, constructed by Morrison-Knudsen after a massive mudslide buried the town of Thistle in floodwater and closed the Rio Grande main line in 1983. Passing through one of the curved bores on Track 1 is a westbound Union Pacific helper set dispatched to Castilla to help a heavy eastbound UP freight over Soldier Summit on the night of November 6, 2007.
Inside Billies Mountain
The Thistle Tunnels are twin bores under Billies Mountain in Utah, constructed by Morrison-Knudsen after a massive mudslide buried the town of Thistle in floodwater and closed the Rio Grande main line in 1983. Passing through one of the curved bores on Track 1 is a westbound Union Pacific helper set dispatched to Castilla to help a heavy eastbound UP freight over Soldier Summit on the night of November 6, 2007.