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
- 776 more...
- ItemStruc006834 - Northern Pacific Engineering Drawing, Roundhouse at Pasco, Washington, 1937
- ItemStruc006835 - Northern Pacific Engineering Drawing, Roundhouse at Pasco, Washington, 1957
- ItemStruc006836 - Northern Pacific Engineering Drawing, Roundhouse at Pasco, Washington, 1939
- ItemStruc006837 - Northern Pacific Engineering Drawing, Roundhouse at Pasco, Washington, 1939
- ItemStruc006838 - Northern Pacific Engineering Drawing, Roundhouse at Pasco, Washington, 1939
- ItemStruc006839 - Northern Pacific Engineering Drawing, Roundhouse at Pasco, Washington, 1939
- ItemStruc006840 - Northern Pacific Engineering Drawing, Roundhouse at Pasco, Washington, 1939
- ItemStruc006841 - Northern Pacific Engineering Drawing, Roundhouse at Pasco, Washington, 1939
- ItemStruc006842 - Northern Pacific Engineering Drawing, Roundhouse at Pasco, Washington, 1939
- 526 more...