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
- 379 more...
- Itemimg808 - Great Northern Covered Hopper Car 171636 at McCook, Nebraska, 1990
- Itemimg809 - Great Northern Covered Hopper Car 171638 at Pasco, Washington, 1983
- Itemimg810 - Great Northern Covered Hopper Car 171641 at Pasco, Washington, 1981
- Itemimg811 - Great Northern Covered Hopper Car 171721 at Denver, Colorado, 1990
- Itemimg812 - Great Northern Covered Hopper Car 171721 at Albuquerque, New Mexico, 1990
- Itemimg813 - Great Northern Covered Hopper Car 171722, 1970
- Itemimg814 - Great Northern Covered Hopper Car 171747 at Pasco, Washington, 1988
- Itemimg815 - Great Northern Covered Hopper Car 171773 at Denver, Colorado, 1989
- Itemimg816 - Great Northern Covered Hopper Car 171775 at Albuquerque, New Mexico, 1991
- 131 more...