Railroad Archives Online
- CollectionE0298 - Cordell Newby Photograph Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3005 - Work cars (Railroads)
- 13 more...
- ItemCNBk2img279 - Great Northern Railway Snow Plow X1507 at Havre, Washington in 1972.
- ItemCNBk2img280 - Great Northern Railway Snow Plow X1669 at Great Falls, Montana in 1971.
- ItemCNBk2img281 - Great Northern Railway Snow Plow X1510 at Wenatchee, Washington in 1972.
- ItemCNBk2img282 - Great Northern Railway Snow Plow X1500 at Minneapolis, Minnesota in 1970.
- ItemCNBk2img283 - Great Northern Railway Snow Plow X1586 at Spokane, Washington in 1972.
- ItemCNBk2img284 - Great Northern Railway Snow Plow X1584
- ItemCNBk2img285 - Great Northern Railway Snow Plow X1577 in 1973.
- ItemCNBk2img286 - Great Northern Railway Snow Plow X1576 in 1973.
- ItemCNBk2img287 - Great Northern Railway Snow Plow X1574 in 1974.
- 254 more...