Great Northern Railway Historical Society Blueprint Collection JSBP2473, Helena, Montana, undated. Great Northern Blueprint Number 103.19.01, Crossing with Np Ry. Signaling Diagram. Interstate Commerce Commission Account Number 27, Signals and Interlockers. Other ICC account descriptions: ICC Account Number 27, Interlocking.

Great Northern Railway Historical Society Blueprint Collection JSBP2472, Helena, Montana, undated. Montana Central Railway Blueprint Number Design # 2, Bridge # 82. (Prickley Pear Creek) - Sketch. Interstate Commerce Commission Account Number 6, Bridges, Trestles, and Culverts. Other ICC account descriptions: ICC Account Number 6, Bridge.

Great Northern Railway Historical Society Blueprint Collection JSBP2471, Helena, Montana, undated. Passenger Station. Rear Elevation. Interstate Commerce Commission Account Number 16, Station and Office Buildings. Other ICC account descriptions: ICC Account Number 16, Station Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP2470, Helena, Montana, 1947. Great Northern Blueprint Number 9311-1, Engine House. Floor Plan, Elevations and Section. 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 JSBP2469, Helena, Montana, 1947. Great Northern Blueprint Number 9319-1, 1 Stall Engine House. Plan and Section. Authorization for Expenditure 75719. 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 JSBP2468, Helena, Montana, 1947. Great Northern Blueprint Number 116-5243-13, General Plan of 25,000 Gallon Diesel Fuel Oil Tank. Elevations, Details and Material List. Authorization for Expenditure 74891. Interstate Commerce Commission Account Number 19, Fuel Stations. Other ICC account descriptions: ICC Account Number 19, Fueling Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP2467, Helena, Montana, 1947. Great Northern Blueprint Number 116-5243-12, 25,000 Gallon Capacity Diesel Oil Storage Tank. Details. Authorization for Expenditure 74891. Interstate Commerce Commission Account Number 19, Fuel Stations. Other ICC account descriptions: ICC Account Number 19, Fueling Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP2466, Helena, Montana, 1947. Great Northern Blueprint Number 11062-1, 12' X 14'8'' Steel Diesel Fuel Oil Pump House. Plans, Sections and Details. Authorization for Expenditure 74891. Interstate Commerce Commission Account Number 19, Fuel Stations. Other ICC account descriptions: ICC Account Number 19, Fueling Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP2465, Helena, Montana, 1946. Great Northern Blueprint Number 3B-300-23, Details of 3'' Diesel Fuel Oil Unloader-With Clearances. Elevation and Details. Authorization for Expenditure 74891. Interstate Commerce Commission Account Number 19, Fuel Stations. Other ICC account descriptions: ICC Account Number 19, Fueling Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP2464, Helena, Montana, 1930. Great Northern Blueprint Number 5530, Ogle Drawing Steel 250 Ton Coaling Station. Foundation and Machinery House. Authorization for Expenditure 5920. Interstate Commerce Commission Account Number 19, Fuel Stations. Other ICC account descriptions: ICC Account Number 19, Coal Chute.