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 3004 - Maintenance of Way support
- 9 more...
- ItemStruc001071 - Great Northern Engineering Drawing, Building for Signal Maintainer, Linemen and Track, Metal at Troy, Montana, 1969
- ItemStruc001072 - Great Northern Engineering Drawing, Building for Signal Maintainer, Linemen and Track, Metal at Troy, Montana, 1969
- ItemStruc001073 - Great Northern Engineering Drawing, Building for Signal Maintainer, Linemen and Track, Metal at Troy, Montana, 1969
- ItemStruc001182 - Great Northern Engineering Drawing, Tie Treating Plant at Somers, Montana, 1970
- ItemStruc001183 - Great Northern Engineering Drawing, Tie Treating Plant at Somers, Montana, 1970
- ItemStruc001184 - Great Northern Engineering Drawing, Tie Treating Plant at Somers, Montana, 1971
- ItemStruc001185 - Great Northern Engineering Drawing, Tie Treating Plant at Somers, Montana, 1970
- ItemStruc001186 - Great Northern Engineering Drawing, Tie Treating Plant at Somers, Montana, 1971
- ItemStruc001188 - Great Northern Engineering Drawing, Tie Treating Plant at Somers, Montana, 1970
- 139 more...