Great Northern Railway Historical Society Blueprint Collection JSBP4913, Skykomish - Scenic, Washington, 1941. Move Telegraph Lines - Between Scenic and Skykomish. Map. Authorization for Expenditure 60847. Interstate Commerce Commission Account Number 26, Telegraph and Telephone Lines. Other ICC account descriptions: ICC Account Number 26, Telegraph.

Great Northern Railway Historical Society Blueprint Collection JSBP4912, Skykomish, Washington, undated. Great Northern Blueprint Number X10-217 Sheet 23, Converter Sub Station- Transfer Cars for Transformers. Plan, Elevations, Sections and Details. Interstate Commerce Commission Account Number 30, Power Substation Buildings. Other ICC account descriptions: ICC Account Number 29, Substation.

Great Northern Railway Historical Society Blueprint Collection JSBP4911, Skykomish, Washington, undated. Feeder and Track Transformer Circuits. Schematic. Interstate Commerce Commission Account Number 30, Power Substation Buildings. Other ICC account descriptions: ICC Account Number 29, Substation.

Great Northern Railway Historical Society Blueprint Collection JSBP4910, Skykomish, Washington, 1926. Great Northern Blueprint Number X.10.217, Converter Substation. Office Detail and Door Entrance. Interstate Commerce Commission Account Number 29, Power Plant Buildings. Other ICC account descriptions: ICC Account Number 29, Power Station.

Great Northern Railway Historical Society Blueprint Collection JSBP4909, Skykomish, Washington, 1926. Transfer Care for Moving Transformers. Specifications. Interstate Commerce Commission Account Number 30, Power Substation Buildings. Other ICC account descriptions: ICC Account Number 29, Substation.