Great Northern Blueprint Number 1188-4-3, map of Projected Change for Double Track Just East of Summit, 1923. Other subject categories: Contour Map

Great Northern Blueprint Number 1308-39-1, Revision Filing Map, Summit to Java, 1909. Other subject categories: Filing Map

Great Northern Blueprint Number 1308-39-2, Revision Filing Map, Summit to Java, 1909. Other subject categories: Filing Map

Great Northern Blueprint Number 1242-23, map of Proposed Pipe Line at Summit(blueprint), 1902. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1242-23-1, map of Proposed Pipe Line at Summit, 1902. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1007-34-1, Revision of Main Line Summit to Essex, undated. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1215-11, map of Location Station 9960, Summit of Rocky Mountains to Station "0" = Great Northern 35044, 1891. Other subject categories: Right of Way and Track Map