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
- 1955 more...
- ItemBB024473 - Great Northern Engineering Drawing: General Plan, Bridge 621, South of Box Elder, Montana, 1955
- ItemBB024474 - Great Northern Engineering Drawing: Pier Details, Bridge 621, South of Box Elder, Montana, undated
- ItemBB024475 - Great Northern Engineering Drawing: Abutment Details, Bridge 621, South of Box Elder, Montana, undated
- ItemBB024476 - Great Northern Engineering Drawing: Deck Plan, Bridge 621, South of Box Elder, Montana, 1955
- ItemBB024477 - Great Northern Engineering Drawing: Shop Plan - Beam Spans, Bridge 621, South of Box Elder, Montana, undated
- ItemBB024478 - Great Northern Engineering Drawing: General Plan, Bridge 51 - Little Prickly Pear Creek, South of Sieben, Montana, 1962
- ItemBB024479 - Great Northern Engineering Drawing: General Plan, Bridge 52 - Little Prickly Pear Creek, South of Sieben, Montana, 1956
- ItemBB024480 - Great Northern Engineering Drawing: General Plan, Bridge 42.1 - Public Underpass, North of Rimrock, Montana, 1937
- ItemBB024481 - Great Northern Engineering Drawing: Masonry Plan, Bridge 42.1 - Public Underpass, North of Rimrock, Montana, undated
- 2037 more...