Railroad Archives Online
- CollectionD0027 - Timothy Miller Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1009 - Engineering Records
- Subseries Level 2008 - Physical plant drawing
- Subseries Level 3006 - Stockyards
- ItemStruc000989 - Great Northern Engineering Drawing, Stockyard at Blackfoot, Montana, 1968
- ItemStruc001686 - Great Northern Engineering Drawing, Stockyard at Kalispell, Montana, 1967
- ItemStruc001687 - Great Northern Engineering Drawing, Stockyard at Kalispell, Montana, 1959
- ItemStruc001688 - Great Northern Engineering Drawing, Stockyard at Kalispell, Montana, 1959
- ItemStruc001689 - Great Northern Engineering Drawing, Stockyard at Kalispell, Montana, 1959
- ItemStruc003003 - Great Northern Engineering Drawing, Scale at Stockyard - 10-Ton Fairbanks-Morse Motor Truck Scale at Great Falls, Montana, 1943
- 9 more...