Removing map collars from historical topographic maps is easy. Just take the geotiff and then use the 1:24k topo index and run clip raster by vector. There is probably an faster more automated way of doing it, but it works well enough for my purposes.
Mapping
125 Years of Topographic Mapping – ArcNews Fall 2009 Issue
In the late 19th century, surveyors created topographic maps in the field. They measured a series of points in the field, using tape and compass traverses with elevations determined with an aneroid barometer and used in a process known as field sketching to draw a terrain representation using contours. The introduction of the plane table and alidade, which could measure vertical angles, point positions, and elevations much more rapidly, greatly increased the accuracy of data shown on topographic maps but still required the surveyor to field sketch the contours after control points had been identified. The aid of a visual three-dimensional model in the office to construct the surface representation awaited the development of photogrammetry.
During this time, USGS maps were created at scales of 1:250,000 for 1-degree areas and 1:125,000 for 30-minute areas. The scales were increased with time, and by 1894, most of the maps were created for 15-minute areas and produced at a scale of 1:62,500. Features shown on the maps included civil divisions of state, county, township, and city or village; public works, including railroads, tunnels, wagon roads, trails, bridges, ferries, fords, dams, canals, and acequias; hypsography with contours and floodplain representations; and miscellaneous features of forest, sand, and sand dunes.
The reproduction of maps from the original field sketches used a lithographic printing process based on copper plates. The image of the topographic features was engraved on the copper plates. A three-color process was used with civil divisions and public works in black, hydrography in blue, and hypsography and miscellaneous features in brown.
Anatomy of a tree | US Forest Service
Vintage Shaded Relief Basemap β Adventures In Mapping
As a follow-up to this experiment, I’ve tried it out on a global retro shaded relief plate beautifully hand-painted by Kenneth Townsend, so it could be tiled up as a basemap at large scales (the zoomed-out ones).
You can play with it here. And see how it was made here.
USGS Historical Topographic Map Explorer
The Historical Topographic Map Explorer is a great resource for all of your historical topographic map needs.
Herwig G. Schutzler
Herwig G. Schutzler now retired, worked for R.R. Donnelly Cartographic Services. He lives in Lancaster, PA, USA