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 3001 - Bridges
- 1357 more...
- ItemBB023769 - Great Northern Engineering Drawing: Deck Plan, Bridge 145 - 9 - Mile Creek, North of Slayton, Montana, undated
- ItemBB023770 - Great Northern Engineering Drawing: Alter Girder, Bridge 145 - 9 - Mile Creek, North of Slayton, Montana, 1926
- ItemBB023771 - Great Northern Engineering Drawing: Deck Plan, Bridge 145 - 9 - Mile Creek, North of Slayton, Montana, 1951
- ItemBB023772 - Great Northern Engineering Drawing: General Plan, Bridge 449 - Williams Creek, North of Spion Kop, Montana, 1939
- ItemBB023773 - Great Northern Engineering Drawing: Masonry Plan, Bridge 449 - Williams Creek, North of Spion Kop, Montana, undated
- ItemBB023774 - Great Northern Engineering Drawing: Deck Plan, Bridge 449 - Williams Creek, North of Spion Kop, Montana, 1967
- ItemBB023775 - Great Northern Engineering Drawing: Shop Plan - Girder Span, Bridge 449 - Williams Creek, North of Spion Kop, Montana, undated
- ItemBB023776 - Great Northern Engineering Drawing: Shop Plan - Girder Span, Bridge 449 - Williams Creek, North of Spion Kop, Montana, undated
- ItemBB023777 - Great Northern Engineering Drawing: General Plan, Bridge 34 - Cottonwood Creek, Montana, undated
- 2635 more...