Most of the photos on this site were extracted from reference images (high-resolution tiffs, 20 to 200 megabytes in size) from the Library of Congress research archive. (To query the database click here.) Many were digitized by LOC contractors using a Sinar studio back. They are adjusted by your webmaster for contrast and color in Photoshop before being downsized and turned into the jpegs you see here.

December 1942. General view of the C&NW R.R. Proviso classification yard at Chicago. View full size. 4x5 Kodachrome transparency by Jack Delano.
Was sent from railroad-line.com to view these photos, they are beautiful.
Managing a yard like this would take quite a lot of talent. Love this series of pictures
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