Ghost Train of Marshall Pass.

One of the famous ghost train legends is the Ghost of Marshall Pass on the Denver and Rio Grande Narrow Gauge railroad in Colorado. Back when the pass was only a few years old a passenger train was climbing up the steep twisted grade when the engineer hear the gong in his cab to stop.
Somewhere he heard a whistle of another train behind him. The conductor came demanding to know why he stop (he claim that he nor any of the passengers signaled him to stop.) When he got the train going again the engineer look back and to his horror, the train was closing in fast. 
The engineer opened the throttle wide open and the two trains race across the mountain, though deep snow drifts, snow sheds, and over high bridges. Most of the crew and passengers saw the the train, saying that it was run by a mad engineer determine to wreck there train.
At the top of the pass the engineer looked to see the the other steam locomotives drivers were big and the engineer leaned out of his cab laughing. When they got to a siding to meet another train, a red signal appear and without thinking the engineer on the passenger train braked to a stop.

Just before the pursuing train hit theres, the track spread apart and the train flew off into the canyon. There was no sound what so ever. When the passenger train made it safety back to town the engineer found a message in the window of the cab, it read : "A freight train was wreck as you saw it. Now that you saw it, it will never make another run. The engine was not under control and four men were killed. If you ever run on this road again you will be wrecked."

The engineer quit the D&RG. Work men went the next day but found no wreckage in the canyon, ever since the phantom train was never heard of again.
In 1955 the Marshall pass line was abandoned but the story has become popular. It renin's me of Steven Spielberg's film DUEL about the old rusty truck terrorizing a salesman.