Railroad Archives Online
- CollectionD0036 - George Werkema Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3003 - Freight Cars
- 350 more...
- Itemimg779 - Great Northern Covered Hopper Car 171228 at Pasco, Washington, 1992
- Itemimg780 - Great Northern Covered Hopper Car 171263 at Denver, Colorado, 1972
- Itemimg781 - Great Northern Covered Hopper Car 171263 at Albuquerque, New Mexico, 1976
- Itemimg782 - Great Northern Covered Hopper Car 171277 at Amarillo, Texas, 1979
- Itemimg783 - Great Northern Covered Hopper Car 171277 at Lynden, Washington, 1977
- Itemimg784 - Great Northern Covered Hopper Car 171300 at Albuquerque, New Mexico, 1979
- Itemimg785 - Great Northern Covered Hopper Car 171300 at Albuquerque, New Mexico, 1978
- Itemimg786 - Great Northern Covered Hopper Car 171385 at Kinsley, Kansas, 1990
- Itemimg787 - Great Northern Covered Hopper Car 171385 at Kinsley, Kansas, 1990
- 160 more...