The United States Geological Survey (USGS) 100,000 Scale Maps include 2,332 topographic maps. These maps are a part of the 1:100,000-scale series (where one centimeter is one Kilometer on the ground) 30 X 60 Minute Quadrangle map collection, which were created from the 1:24,000-scale topographic maps made by USGS between the years 1967-1983. The USU collection includes 76% of the 30 X 60 Minute Quadrangle maps known to be produced by USGS. For more information on USGS Topographic Maps and to view the USGS TopoView database see https://libguides.usu.edu/maps/types. These topographic maps have a focus in land management planning and conservation projects, but could also be useful for outdoor recreation (Makower, 1990). Maps are named after a city or location within the map’s covered area, but the name does not necessarily reflect the entire contents of the map. Each map features an adjoining map key that shows the map in relation to other 100,000 scale maps. Largely produced in the 1980s, these maps feature contours that make it possible to show the height and shape of mountains, the depths of the ocean bottom, and the steepness of slopes that can be read using the map symbols key on each map. For an example of a map symbol key see https://www.usgs.gov/media/images/us-topo-map-symbol-file-sample.

Makower, J. (Ed.). (1990). The Map Catalog: Every Kind of Map and Chart on Earth and Even Some Above it. Vintage Books.