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Monday, September 12, 2011

USGS Launches Historical Topo Map Collection (in GeoPDF)

The National Geospatial Program today launches the USGS Historical Topographic Map Collection (see FAQ, PR). 

It offers more than 90,000 of the 200,000+ USGS historical topo maps - some dating back to the Agency's founding more than 126 years ago. The maps are georeferenced and can be downloaded for free from the USGS Store. Since they are in a GeoPDF format, no special programs are required, and they can be used in conjunction with the US Topo maps. (Well, except on a Mac for which the TerraGo plug-in is not available!)e website includes advanced search functions, status graphics (more maps are in the works via a quick turnaround process) and download instructions. 

- via USGS PR

by Adena Schutzberg on 09/12 at 05:27 AM | Comments | Bookmark and Share

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