Came across this while looking for something else.
When Winter Comes - Snowfighting in the Sierra Nevada Mountains, California, during the winter of 1951-1952 when heavy snowfalls caused havoc on the railroads. The film includes scenes of Southern Pacific cab-forward steam locomotives, rotary snow plows and related snow removal equipment. Also many picturesque scenes of the snow covered wilderness.
Created by the Southern Pacific Railroad Company, this film has been made available for non-commercial educational & research purposes courtesy the California State Railroad Museum Library, 125 I Street, Sacramento, CA 95814, Telephone: (916) 323-8073begin_of_the_skype_highlighting 
(916) 323-8073 FREE end_of_the_skype_highlighting, Fax: (916) 327-5655, email: rrmuseumlibrary@parks.ca.gov, http://csrmf.org/
Rights: Rights are owned by Union Pacific Railroad Museum. Copyright Holder has given Institution permission to provide access to the digitized work online. Transmission or reproduction of materials protected by copyright beyond that allowed by fair use requires the written permission of the copyright owner. .
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