On January 38, 1921, there was a head-end colli sion between a freight train and a work extra on the Union Pacific Railroad near Knight, Wyoming, which resulted xn the death of 1 employee and the injury of 11 employees. After investigation of this accident the Chief of the Bureau of Safety reports as follows* Location. This accident occurred on that part of the Western Division extending between Green River and Evanston, Wyoming, a distance of 100.2 miles, which in the vicinity of the point of

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... ccident is a single-track line over which trains are operated by time-table, tram orders, and an automatic block-signal system. The accident occurred at a point about 75 feet west of westbound distant signal 9083, near the center of a curve of 1° 30' which is 3,301 feet in length; this curve leads to the right for westbound trams. The grade is .77 per cent descending for westbound trams-At the time of the accident it was snowing, Description. Work extra 1336 consisted of 4 cars and a cabooee, hauled by engine 1336, and was m charge of Conductor Feign and Engmeman Gates. At about 10.30 a.m. it passed Knight east bound, slowing up to let Flagman Baker get off. This flagman, according to the conductor, had verbal instructions