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 3003 - Maintenance Facilities
- 463 more...
- ItemStruc005450 - Northern Pacific Engineering Drawing, Unnamed Structure at Elma, Washington, 1938
- ItemStruc005451 - Northern Pacific Engineering Drawing, Unnamed Structure at Elma, Washington, 1936
- ItemStruc005452 - Northern Pacific Engineering Drawing, Unnamed Structure at Elma, Washington, 1938
- ItemStruc005482 - Northern Pacific Engineering Drawing, Steam Lines at Portland, Oregon, 1964
- ItemStruc005498 - Northern Pacific Engineering Drawing, Garage, Metal at Pasco, Washington, 1983
- ItemStruc005499 - Northern Pacific Engineering Drawing, Carmen's Service Building at Pasco, Washington, 1971
- ItemStruc005500 - Northern Pacific Engineering Drawing, Carmen's Service Building at Pasco, Washington, 1971
- ItemStruc005501 - Northern Pacific Engineering Drawing, Carmen's Service Building at Pasco, Washington, 1971
- ItemStruc005502 - Northern Pacific Engineering Drawing, Carmen's Service Building at Pasco, Washington, 1971
- 839 more...