Historical Topographic Map Collection


The U.S. Geological Survey (USGS) has released more than 161,000 digitally scanned historical maps in GeoPDF format covering the lower 48 states and best of all they are freely available from their Historical Topographic Map Collection.

“These chronological historical maps are an important national resource as they provide the long-term record and documentation of the natural, physical and cultural landscape. The history documented by this collection and the analysis of distribution and spatial patterns is invaluable throughout the sciences and non-science disciplines. Genealogists, historians, anthropologists, archeologists and others can use this collection for research as well as a framework on which a myriad of information can be presented in relation to the national landscape.” Here is the full press release.

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