Research Guides: Maps: Digital Maps

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Current Mapping

Currently, new mapping being conducted takes full advantage of state of the art geographic information system (GIS) technology. A geographic information system (GIS) integrates hardware, software, and data for capturing, managing, analyzing, and displaying all forms of geographically referenced information. It allows the end-user to view a map with as much or as little detail as needed. From the GPS in your car to MapQuest to the Census Bureau Tigerline maps, GIS is the basis for all of these products. Even many historical maps are being scanned and converted to formats that can be manipulated by GIS systems.

Selected Online Map Resources

USGS Historical Topographic Maps
Search by state, scale and name of sheet.
USGS Map Locator
Use the locator to find maps available on a given location.
mapserver.com
has topographic maps, nautical charts, aerial photos, nautical charts, and nautical charts that you can view for free.
Perry-Castañeda Library Map Collection
This University of Texas online collection has an extensive array of historical maps online. Also has links to numerous other online maps at other sites.
Wisconsin State Cartographer's Office
The State Cartographer’s Office (SCO) is Wisconsin’s resource for information about maps, cartography, geographic information systems (GIS), land information systems (LIS), and geospatial technology.