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 3003 - Maintenance Facilities
- 1449 more...
- ItemStruc003557 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1910
- ItemStruc003558 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1910
- ItemStruc003559 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1910
- ItemStruc003560 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1911
- ItemStruc003561 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1911
- ItemStruc003562 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1910
- ItemStruc003563 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1911
- ItemStruc003564 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1910
- ItemStruc003565 - Great Northern Engineering Drawing, Roundhouse and Shops at Hillyard, Washington, 1911
- 633 more...