History

Contains dozens of high-resolution maps available for download

Official Canadian government site featuring topographic maps, interactive maps, and the Toporama mapping tool.

Large digital collection of privately held antique maps from around the world.

Maps including the first document to name America from 1507 and a 1650 map showing California as an island.

Search for open access maps

Primary & secondary sources about the Pittsburgh region, including a range of publications, maps, manuscripts & audio/visual images.

Library of Congress collections of maps

The Library's cartographic collections include a wide array of maps that depict everything from individual buildings to panoramic views of large urban areas.

Library of Congress Geography and Map Division database

Yale University Map Collection-maps & charts provide visual support for the teaching of church &mission history, & Biblical studies.

Digital topographic maps from the USGS

A public domain map dataset featuring tightly integrated vector & raster data.

Pennsylvania Spatial Data Access (PASDA) is Pennsylvania's official public access open geospatial data portal

Interactive Map Resources

TopoView highlights one of the USGS's most important and useful products, the topographic map.

A partnership between the University of Pittsburgh, Allegheny County, & the City of Pittsburgh.

Using cutting edge technology, Westmoreland County GIS fulfills a statutory requirement that all taxable property is mapped.

Historic Maps & Resources of Westmoreland County

Historic Sites of Westmoreland County

Westmoreland County Bureau of Parks and Recreation