The United States Geological Survey (USGS) is one of the major creators and sources for maps and GIS data in the United States. They provide valuable resources in multiple areas.
This map series divides the United States into quadrangles bounded by two lines that span either 7.5 or 15 minutes of latitude and longitude. The scale of 1:24,000 (1 inch = 2,000 feet) shows an area in detail, useful for engineering, local area planning, and recreational purposes such as hiking or hunting. Contour lines show the shape and elevation of the terrain. The maps also show and name prominent natural and cultural features. For more information, see Topographic Map Symbols.
A set of topographic maps is available in the library storage annex. The USGS no longer prints or distributes topographic maps to libraries, so those in our print collection are not be the most recent version. The USGS provides digital topographic maps that are available free of charge; follow the steps on the digital topographic maps locator page to download your map. You'll also have an option to order a print copy of the map (for a fee). This site also contains scans of many of the historic topographic maps dating back to the 1880's.
Records of the topographic maps available in the library storage annex may be viewed in the online catalog. Use the request button in the online catalog to have the maps you need delivered to one of the library locations. Be sure to check holdings for both states for maps that cross state borders.
The USGS produces many other map series. These are just a few examples, which can be found in the Government Documents shelving area (northwest corner of the 2nd floor).