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
- 849 more...
- ItemBB021940 - Great Northern Engineering Drawing: Shop Plan - Standard Beam Span, Bridge 498 - Otter Creek, North of Blythe, Montana, undated
- ItemBB021941 - Great Northern Engineering Drawing: General Plan, Bridge 496 - Otter Creek, North of Blythe, Montana, 1952
- ItemBB021942 - Great Northern Engineering Drawing: Masonry Plan, Bridge 496 - Otter Creek, North of Blythe, Montana, undated
- ItemBB021943 - Great Northern Engineering Drawing: Deck Plan, Bridge 496 - Otter Creek, North of Blythe, Montana, undated
- ItemBB021944 - Great Northern Engineering Drawing: Shop Plan - Standard Beam Span, Bridge 496 - Otter Creek, North of Blythe, Montana, undated
- ItemBB021945 - Great Northern Engineering Drawing: General Plan, Bridge - Otter Creek, North of Raynesford, Montana, 1949
- ItemBB021946 - Great Northern Engineering Drawing: Deck Plan, Bridge - Otter Creek, North of Raynesford, Montana, undated
- ItemBB021947 - Great Northern Engineering Drawing: Shop Plan - Steel Details, Bridge - Otter Creek, North of Raynesford, Montana, undated
- ItemBB021948 - Great Northern Engineering Drawing: Deck Plan, Bridge - Otter Creek, North of Raynesford, Montana, undated
- 3143 more...