Great Northern Blueprint Number 11-816, Drop Pit for Round House Track Number 1, Floor Plan and Longitudinal Section, 1923. Other subject categories: Drawing

Great Northern Technical Drawing, Piping Layout in Round House 1923. Other subject categories: Drawing

Great Northern Technical Drawing, Details of Inward Opening Doors at Round House for Snow Plow 1922. Other subject categories: Drawing

Great Northern Blueprint Number 11-811, Machine Shop - General Plan, 1922. Other subject categories: Drawing

Great Northern Railway Historical Society Blueprint Collection JSBP4901, Skykomish, Washington, 1926. Great Northern Blueprint Number 139-3496-2, Turntable. Truss Bracing Posts. Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Other ICC account descriptions: ICC Account Number 20, Shop Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP4900, Skykomish, Washington, 1924. Great Northern Blueprint Number 11-816, Proposed Toilet Building. Site and Floor Plan, Sections and Details. Authorization for Expenditure 24968. Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Other ICC account descriptions: ICC Account Number 20, Shop Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP4899, Skykomish, Washington, 1923. Toilet Facilities. Round House and Machine Shop. Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Other ICC account descriptions: ICC Account Number 20, Roundhouse.

Great Northern Railway Historical Society Blueprint Collection JSBP4898, Skykomish, Washington, 1919. Great Northern Blueprint Number 9-329, Water, Steam, Sewer Pipe, Electric Lights and Hydrants. 6 Stall Round House. Authorization for Expenditure 8023. Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Other ICC account descriptions: ICC Account Number 20, Roundhouse.

Great Northern Railway Historical Society Blueprint Collection JSBP4897, Skykomish, Washington, 1919. Great Northern Blueprint Number 8044-4, Door Details. Standard 104' Frame Engine House. Authorization for Expenditure 8023. Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Other ICC account descriptions: ICC Account Number 20, Roundhouse.

Great Northern Railway Historical Society Blueprint Collection JSBP4896, Skykomish, Washington, 1919. Great Northern Blueprint Number 8044-3, Elevation and Details. Standard 104' Frame Engine House. Authorization for Expenditure 8023. Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Other ICC account descriptions: ICC Account Number 20, Roundhouse.