- US Topo: Maps for America -- Provides access to United States topographic maps that can be viewed or downloaded directly from the US Geological Survey. Includes a link to the Historical Topographic Map Collection.
- Rutgers Geography Topographic Map Download Depot -- This web site is maintained by the Geography Department at Rutgers University. The site contains New Jersey 1:24,000 scale topographic maps, mostly revised in 1981, although a few are earlier. Quadrangle maps are displayed by clicking on the index map of the state. The quality of the maps is acceptable, but the site requires a high bandwidth connection to access the maps.
- TopoZone -- Searchable by keyword or location. A clickable map also lets you to Find Topo Maps by State."
- U.S. Board on Geographic Names -- Provides access to the Geographic Names Information System (GNIS), the official repository of domestic geographic names information. Users can search and retrieve records, view the location(s) on various base maps, and also link to a more detailed summary page. Information on Foreign Names, Antarctic Names, and Undersea Features is also provided.