Great Northern Blueprint Number 1321-18-2, map of New Duluth, 1898. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1321-18-3, map of New Duluth, 1898. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1241-30-4, map of Proposed Connection between Duluth Terminal Railway and Duluth-Superior Bridge, 1907. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1241-30-6, map of Proposed Connection between Duluth Terminal Railway and Duluth-Superior Bridge, 1907. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1241-30-5, map of Proposed Connection between Duluth Terminal Railway and Duluth-Superior Bridge, 1907. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1220-8-2, map of Proposed Connection Duluth Terminal Railway and Duluth Superior Bridge (blueprint 2 copies), 1909. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1220-8-1, map of Proposed Connection Duluth Terminal Railway and Duluth Superior Bridge, 1909. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1255-7-2, map of Pittsburgh Coal Dock and Wharf Company, 1911. Other subject categories: Right of Way and Track Map