Union Pacific Rotary Snow Plow

This rotary snow plow from 1966 is both  massive (167 tons) and powerful (3000HP).  Note that all that power goes towards driving the cutting wheel -- as this unit is not self propelled, it must be pushed by 3 or 4 locomotives.  Typical speed of operation was 4 to 6 mph.  It was in service in Wyoming through the mid 1980s.


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