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 1188-4-9, Track Profile, Durham, Montana, Proposed Change 2 1/2 Miles West of Durham, undated. Other subject categories: Profile

Great Northern Blueprint Number 1188-4-6, Track Profile, Durham, Montana, Proposed Change 2 1/2 Miles West of Durham 'B; and 'C' Line, 1924. Other subject categories: Profile

Great Northern Blueprint Number 1188-4-8, map of Proposed Change 2 1/2 Miles West of Durham, 1924. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1188-4-5, map of Proposed Change 2 1/2 Miles West of Durham A, B, C, & D Lines, 1924. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1188-4-1, map of Projected Change 2 1/2 Miles West of Durham, 1923. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1147-12-4, map of Durham (Duplicate), 1898. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1147-12-4, map of Durham, 1893. Other subject categories: Right of Way and Track Map

Great Northern Railway Authorization for Expenditure (AFE), Durham, Montana, 1891. Section House . Interstate Commerce Commission Account Number 17, Roadway buildings. Series Original.

Great Northern Railway Authorization for Expenditure (AFE), Durham, Montana, 1891. Water Tank, 50,000 Gallon Tank, with Windmill. Interstate Commerce Commission Account Number 18, Water Stations. Series Original.