Railroad Archives Online
- CollectionD0027 - Timothy Miller Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1012 - Cartographic materials
- Subseries Level 2002 - Plats
- 552 more...
- ItemPlat011275 - Plat Map of Great Northern Facilities at Lewistown, Montana, 1915
- ItemPlat011276 - Plat Map of Great Northern Facilities at Lewistown, Montana, 1915
- ItemPlat011277 - Plat Map of Great Northern Facilities at Libby, Montana, 1969
- ItemPlat011278 - Plat Map of Great Northern Facilities at Libby, Montana, 1969
- ItemPlat011279 - Plat Map of Great Northern Facilities at Libby, Montana, 1969
- ItemPlat011280 - Plat Map of Great Northern Facilities at Libby, Montana, undated
- ItemPlat011281 - Plat Map of Great Northern Facilities at Libby, Montana, undated
- ItemPlat011282 - Plat Map of Great Northern Facilities at Libby, Montana, 1930
- ItemPlat011283 - Plat Map of Great Northern Facilities at Libby, Montana, 1930
- 1193 more...