Inthe Heart of the Rocky Mountains.
The Main Line has tight curves and a steep steady grade as it hugs the hillside ascending the Front Range. There are 17 tunnels in the first 30 miles the rails climbs from Denver to Pinecliff. In those places where a cliffside is particularly steep or there is just too much rock to remove for a cut, they drill and blast a hole under the mountain. Generally these tunnels aren’t very long and you can see daylight one side to the other. They are narrow though. Only a couple of feet clearance are above and either side of a locomotive.
I remember one time there was a terrible accident. There was an area where one side of the track had sunk lower than the other. As the train rolled over the uneven rails it set the cars behind rocking back and forth sideways…
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