Great Northern Blueprint Number 1237-8-2, Track Profile, Fern Bluff, Washington, Profile of Cribwork at Fern Bluff along Skykomish River, Sheet Number 1, 1892. Other subject categories: Profile

Great Northern Blueprint Number 1313-25-1, Track Profile, Great Falls, Montana, Profiles and Grades, Great Falls to Barker, undated. Other subject categories: Profile

Great Northern Blueprint Number 1313-25-2, Track Profile, Profiles, Stations and Bridges, Helena to Butte, 1888. Other subject categories: Profile

Great Northern Blueprint Number 1313-25-3, Track Profile, Profiles, Stations and Bridges, Helena to Great Falls, 1888. Other subject categories: Profile

Great Northern Blueprint Number 1240-30-2, Track Profile, Relocation of a County Road near Lake Minnnetonka, 1889. Other subject categories: Profile

Great Northern Blueprint Number 1325-1-2, Track Profile, Inland Empire Proposed Spur to Rosalia Gravel Pit, undated. Other subject categories: Profile

Great Northern Blueprint Number 1325-1-3, Track Profile, Inland Empire, Rosilia Gravel Pit Spur, undated. Other subject categories: Profile

Great Northern Blueprint Number 1239-33, Track Profile, Spokane Fallls & Northern Railway, Nelson & Fort Sheppard Railway, Columbia & Red Mountain Railway and Red Mountain Railway, Spokane to Rossland, 1899. Other subject categories: Profile

A cross-sectional representation of a section of railroad line, intended to show changes in elevation over a route.

A cross-sectional representation of a section of railroad line, intended to show changes in elevation over a route.