Great Northern Railway Historical Society Blueprint Collection JSBP0513, Billings, Montana, 1910. Great Northern Blueprint Number 6020-1, Signs for Freight Depot. Elevations and Section. Interstate Commerce Commission Account Number 16, Station and Office Buildings. Other ICC account descriptions: ICC Account Number 16, Freight Depot.

Great Northern Railway Historical Society Blueprint Collection JSBP0514, Billings Region, Montana, undated. Burlington Northern Railroad Blueprint, Communications Towers. Interstate Commerce Commission Account Number 26, Telegraph and Telephone Lines. Other ICC account descriptions: ICC Account Number 26, Communications.

Great Northern Blueprint Number 1217-28, map of Billings to Great Falls Line Judith Gap to Armington, 1902. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1217-27, map of Billings to Great Falls Line Judith Gap to Armington 92 Miles, 1902. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1217-31-1, map of Part of Montana Showing Billings & Northern Railway, 1902. Other subject categories: Map

Great Northern Blueprint Number 1217-31-2, map of Part of Montana Showing Billings & Northern Railway, 1906. Other subject categories: Map