Great Northern Railway Historical Society Blueprint Collection JSBP0855, Cass Lake, Minnesota, 1907. Great Northern Blueprint Number 1339-6, 16' Extension to 12 Stalls of 76' Round House. Floor Plan. 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 JSBP0854, Cass Lake, Minnesota, 1907. Great Northern Blueprint Number 1332-9, 16' Extension to 12 Stalls of 76' Round House. Floor Plan. Authorization for Expenditure 16602. 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 JSBP0853, Cass Lake, Minnesota, 1904. Great Northern Blueprint Number 100-C-2039, Replacing Stationary Hood With Drop Hood Smoke Jack. Views. Authorization for Expenditure 10661. 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 JSBP0852, Cass Lake, Minnesota, 1904. Great Northern Blueprint Number 100-C-2039, Smoke Jack - Replace Stationary Hood With Drop Hood. Elevation and Material List. Authorization for Expenditure 10661. Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Other ICC account descriptions: ICC Account Number 20, Engine House.

Great Northern Railway Historical Society Blueprint Collection JSBP0851, Cass Lake, Minnesota, 1898. Great Northern Blueprint Number 1002-13, Boiler House Annex to Engine House. Floor Plan and Elevation. Authorization for Expenditure 16602. 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 JSBP0850, Cass Lake, Minnesota, 1897. Great Northern Blueprint Number 76-B-5 Sheet 6, Plan for Engine House. Elevations at Doors, Windows and Rear Wall Section. Authorization for Expenditure 3139. Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Other ICC account descriptions: ICC Account Number 20, Engine House.

Great Northern Railway Authorization for Expenditure (AFE), Cass Lake, Minnesota, undated. Privy . Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Series .

Great Northern Railway Authorization for Expenditure (AFE), Cass Lake, Minnesota, undated. Hose House, with Equipment. Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Series .

Great Northern Railway Authorization for Expenditure (AFE), Cass Lake, Minnesota, 1923. Tool House . Interstate Commerce Commission Account Number 17, Roadway buildings. Series II.