Railroad Archives Online
- CollectionE0477 - BNSF Maps, Drawings and Records Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1012 - Cartographic materials
- Subseries Level 2002 - Plats
- 62 more...
- ItemEBP3690 - Montana & Great Northern Railway Filing Map, Somers, Montana, 1905
- ItemEBP3691 - Montana & Great Northern Railway Filing Map, Somers, Montana, 1905
- ItemEBP3692 - Montana & Great Northern Railway Filing Map, Somers, Montana, 1909
- ItemEBP3693 - Montana & Great Northern Railway Filing Map, Somers, Montana, 1909
- ItemEBP3694 - Montana & Great Northern Railway Filing Map, Somers, Montana, 1909
- ItemEBP3695 - Montana & Great Northern Railway Filing Map, Somers, Montana, 1909
- ItemEBP3696 - Montana & Great Northern Railway Filing Map, Somers, Montana, 1909
- ItemEBP3699 - Montana & Great Northern Railway Filing Map, Somers, Montana, 1905
- ItemEBP3700 - Montana & Great Northern Railway Filing Map, Somers, Montana, 1905
- 33 more...