Great Northern Blueprint Number 1188-31-6, map of Kilroy to Durham Revision, 1912. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1188-31-10, map of Kilroy to Durham Projected Revision of Main Line (2 copies), 1913. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1188-31-12, map of Kilroy to Durham Line Change, 1913. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1188-31-13, map of Kilroy to Durham Projected Revision of Main Line (blueprint), 1913. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1188-31-13, map of Kilroy - Durham Revision, 1913. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1188-31-9, Track Profile, Kilroy, Montana, Kilroy to Durham Projected Revision of Main Line, 1913. Other subject categories: Profile

Great Northern Blueprint Number 1188-31-1, Track Profile, Kilroy, Montana, Kilroy to Durham Revision, 1909. Other subject categories: Profile

Great Northern Blueprint Number 1188-31-3, Track Profile, Kilroy, Montana, Kilroy to Durham Revision, 1909. Other subject categories: Profile

Great Northern Blueprint Number 1188-31-7, Track Profile, Kilroy, Montana, Kilroy to Durham Projected Revision of Main Line, 1912. Other subject categories: Profile

Great Northern Blueprint Number 1188-31-15, Track Profile, Kilroy, Montana, Kilroy - Durham Revision, 1913. Other subject categories: Profile