The over 120 historical maps in the Google Maps and Google Earth Rumsey Historical Maps sites have been selected by David Rumsey from his collection of more than 150,000 historical maps; in addition, there are a few maps from collections with which he collaborates. These maps can also be seen in the Gallery layer of Google Earth, Rumsey Historical Maps layer.
All the maps contain rich information about the past and represent a sampling of time periods (1680 to 1930), scales, and cartographic art, resulting in visual history stories that only old maps can tell. Each map has been georeferenced, thus creating unique digital map images that allow the old maps to appear in their correct places on the modern globe.
The David Rumsey Map Collection was formed by David Rumsey over the last 30 years. Rumsey has scanned more than 17,000 of the maps since 1999 and put them online in a free public map library at www.davidrumsey.com. Rumsey believes in free public access to his maps, so visitors can not only look at the maps in full high resolution (some of the digital map images are 2 GB) but they can also download them for personal use.
List of Maps in Google Maps and Google Earth: