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
- ItemStruc000004 - Northern Pacific Engineering Drawing, Diesel Fueling Waste Control at Auburn, Washington, 1973
- ItemStruc000005 - Northern Pacific Engineering Drawing, Wastewater Treatment Facility at Auburn, Washington, 1976
- ItemStruc000006 - Northern Pacific Engineering Drawing, Wastewater Treatment Facility at Auburn, Washington, 1976
- ItemStruc000007 - Northern Pacific Engineering Drawing, Wastewater Treatment Facility at Auburn, Washington, 1976
- ItemStruc000008 - Northern Pacific Engineering Drawing, Wastewater Treatment Facility at Auburn, Washington, 1977
- 995 more...