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
- 7244 more...
- ItemBB029324 - Northern Pacific Engineering Drawing: Shop Plan - End Post, Bridge 207 - Clark Fork River, West of Donlan, Montana, undated
- ItemBB029325 - Northern Pacific Engineering Drawing: Shop Plan - Diagonal, Bridge 207 - Clark Fork River, West of Donlan, Montana, undated
- ItemBB029326 - Northern Pacific Engineering Drawing: Shop Plan - End Post, Bridge 207 - Clark Fork River, West of Donlan, Montana, undated
- ItemBB029327 - Northern Pacific Engineering Drawing: Shop Plan - Bottom Lateral, Bridge 207 - Clark Fork River, West of Donlan, Montana, undated
- ItemBB029328 - Northern Pacific Engineering Drawing: Shop Plan - Cross Frame, Bridge 207 - Clark Fork River, West of Donlan, Montana, undated
- ItemBB029329 - Northern Pacific Engineering Drawing: Shop Plan - Cross Frame, Bridge 207 - Clark Fork River, West of Donlan, Montana, undated
- ItemBB029330 - Northern Pacific Engineering Drawing: Shop Plan - Bill of Material, Bridge 207 - Clark Fork River, West of Donlan, Montana, undated
- ItemBB029331 - Northern Pacific Engineering Drawing: Shop Plan - Bill of Material, Bridge 207 - Clark Fork River, West of Donlan, Montana, undated
- ItemBB029332 - Northern Pacific Engineering Drawing: Shop Plan - Bill of Material, Bridge 207 - Clark Fork River, West of Donlan, Montana, undated
- 475 more...