Great Northern Railway Historical Society Blueprint Collection JSBP1315, Duluth, Minnesota, 1947. Duluth Map. Shows Foundations of Duluth Terminal Trestle That Have Been Removed. Authorization for Expenditure 68088. 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 JSBP1316, Duluth, Minnesota, 1948. Timber Sidewalk. Details - 9th Avenue W and Michigan Street. 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 JSBP1317, Duluth, Minnesota, 1957. Great Northern Blueprint Number 211.1560.346, Duluth-Superior Bridge. Fender for Center Pier - Renewal of East Nose Crib. Authorization for Expenditure 88095. 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 JSBP1318, Duluth, Minnesota, undated. Duluth Map. Remove Piers From Duluth Bridge Co Trestle. 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 JSBP1319, Duluth, Minnesota, undated. Duluth Map. Present Freight Yards and Depot Showing Proposed Foot Bridge. 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 JSBP1320, Duluth, Minnesota, undated. Great Northern Blueprint Number 1235-13, McDougall Warehouse. Detail of Plate Between Ramp and Roadway. Interstate Commerce Commission Account Number 16, Station and Office Buildings. Other ICC account descriptions: ICC Account Number 16, Warehouse.

Great Northern Railway Historical Society Blueprint Collection JSBP1321, Duluth, Minnesota, undated. Great Northern Blueprint Number 235-3, Mcdougall Ter Building. Map of Tracks 2 and 3 and Ramp. Interstate Commerce Commission Account Number 16, Station and Office Buildings. Other ICC account descriptions: ICC Account Number 16, Warehouse.

Great Northern Railway Historical Society Blueprint Collection JSBP1322, Duluth, Minnesota, undated. Duluth Map. Showing Realignment of Track to Minnesota Draw. Authorization for Expenditure 869. Interstate Commerce Commission Account Number 12, Track Laying and Surfacing. Other ICC account descriptions: ICC Account Number 12, Track Laying.

Great Northern Railway Historical Society Blueprint Collection JSBP6339, System Wide, 1908. Duluth, Missabe & Northern Railway Blueprint, Sketch Showing Drilling 80 Pound Rail. Elevation. Interstate Commerce Commission Account Number 9, Rails. Other ICC account descriptions: ICC Account Number 9, Rail.