Railroad Archives Online
- CollectionD0027 - Timothy Miller Collection
- Series004 - Northern Pacific Railroad Company
- Subseries Level 1009 - Engineering Records
- Subseries Level 2008 - Physical plant drawing
- Subseries Level 3001 - Bridges
- 2867 more...
- ItemBB017397 - Northern Pacific Engineering Drawing: Shop Plan - General Plan, Bridge 0 - Silver Bow Creek, Butte, Montana, undated
- ItemBB017398 - Northern Pacific Engineering Drawing: Shop Plan - General Plan, Bridge 0 - Silver Bow Creek, Butte, Montana, undated
- ItemBB017399 - Northern Pacific Engineering Drawing: Shop Plan - Girders, Bridge 0 - Silver Bow Creek, Butte, Montana, undated
- ItemBB017400 - Northern Pacific Engineering Drawing: Shop Plan - Girders, Bridge 0 - Silver Bow Creek, Butte, Montana, undated
- ItemBB017401 - Northern Pacific Engineering Drawing: Shop Plan - Girders, Bridge 0 - Silver Bow Creek, Butte, Montana, undated
- ItemBB017402 - Northern Pacific Engineering Drawing: Shop Plan - Laterals, Bridge 0 - Silver Bow Creek, Butte, Montana, undated
- ItemBB017403 - Northern Pacific Engineering Drawing: Shop Plan - Bents, Bridge 0 - Silver Bow Creek, Butte, Montana, undated
- ItemBB017404 - Northern Pacific Engineering Drawing: Shop Plan - Cross Frame, Bolts, Bridge 0 - Silver Bow Creek, Butte, Montana, undated
- ItemBB017405 - Northern Pacific Engineering Drawing: General Plan, Bridge 22.1 (22.2 ?), North of Stuart, Montana, 1929
- 4852 more...