Great Northern Blueprint Number 1240-25-2, map of Boston & Montana Copper and Silver Mine (2 copies) Later Date, undated. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1208-3, map of Great Falls, undated. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1208-3-6, map of Great Falls, undated. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number G-42, map of Great Fallls - Yard at West Side of City (torn), undated. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1250-4, map of Preliminary Line Great Falls to 8 Mile Coulee, undated. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1240-26, map of Proposed Extension Into Great Falls, undated. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1240-25-1, map of Boston & Montana Copper and Silver Mine, undated. Other subject categories: Right of Way and Track Map

Great Northern map, North 1/2 of Great Falls, Black Eagle and ACM Company Smelter, undated. Other subject categories: Right of Way and Track Map