![Exploring an Abandoned Railroad Tunnel in Montana [WATCH]](http://townsquare.media/site/14/files/2017/10/Boulder-Tunnel.jpg?w=980&q=75)
Exploring an Abandoned Railroad Tunnel in Montana [WATCH]
The tunnel was built in 1893, and is just over a mile long.
The Rocky Mountain Rough Riders of Montana recently posted a video on YouTube. The video shows the group exploring an old abandoned railroad tunnel in Boulder, Montana.
If you have an ATV, you might want to join them. Judging from their YouTube page, it looks like they go on Montana adventures quite often.
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