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  • Boulder Tunnel, Montana

    Submitted by scott on Sun, 10/24/2021 - 14:20
    • Read more about Boulder Tunnel, Montana

    In 1887, construction on the tunnel began. Crews worked from both ends. The north end was called Portal and the south end Amazon. When the tunnel was built, it was the longest railroad tunnel in Montana at 6,145 feet. The first train rolled through the tunnel on October 24, 1888.

    The large wooden doors were added at each end and kept closed in winter to keep snowdrifts out and the warm air in. These doors had to be opened every time a train passed through and needed to be closed afterward.

  • East Entrance of Cascade Tunnel (Old Tunnel), WA

    Submitted by scott on Sun, 10/24/2021 - 15:02
    • Read more about East Entrance of Cascade Tunnel (Old Tunnel), WA
  • Windy Point Tunnel, Washington

    Submitted by scott on Sun, 10/24/2021 - 15:02
    • Read more about Windy Point Tunnel, Washington
  • Martin Creek Tunnel, Washington

    Submitted by scott on Sun, 10/24/2021 - 15:02
    • Read more about Martin Creek Tunnel, Washington
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