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
- 83 more...
- ItemStruc003090 - Great Northern Engineering Drawing, Tie Treating Plant - Retort House at Somers, Montana, 1944
- ItemStruc003091 - Great Northern Engineering Drawing, Tie Treating Plant - Retort House at Somers, Montana, 1929
- ItemStruc003092 - Great Northern Engineering Drawing, Tie Treating Plant - Retort House at Somers, Montana, 1944
- ItemStruc003093 - Great Northern Engineering Drawing, Tie Treating Plant - Retort House at Somers, Montana, 1926
- ItemStruc003210 - Great Northern Engineering Drawing, Frame Wood Mill with Steel Trusses at Delta, Washington, 1923
- ItemStruc003211 - Great Northern Engineering Drawing, Frame Wood Mill with Steel Trusses at Delta, Washington, 1923
- ItemStruc003212 - Great Northern Engineering Drawing, Frame Wood Mill with Steel Trusses at Delta, Washington, 1923
- ItemStruc003213 - Great Northern Engineering Drawing, Frame Wood Mill with Steel Trusses at Delta, Washington, 1923
- ItemStruc003214 - Great Northern Engineering Drawing, Frame Wood Mill with Steel Trusses at Delta, Washington, 1923
- 65 more...