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Two Dimensional GIS Browser. This is a special GIS (Geographic Information System) Browser that allows integration and interaction of historical maps with current geospatial data and other historical maps. Examination of the maps in GIS reveals changes in the history of the areas shown on the maps. Eleven historical maps of the San Francisco Bay area from 1851 to 1926, eighteen historical maps of the Boston area from 1776 thru 1897, over thirty historical maps covering the area of the 1804 - 1806 Lewis and Clark Expedition, 35 maps of Washington D.C., and 32 maps of New York City are now available for viewing in the GIS Browser. Additional historic maps of U.S. cities and regions will be added in the near future including Los Angeles, Chicago, Denver, Seattle, Yosemite Valley, and Lake Tahoe. The current geospatial data that can be overlaid and compared to the historical maps includes roads, lakes, parks, state boundaries, digital orthophotos (aerial photography), topographic mapsheets, digital elevation models and satellite imagery. Read Historical Maps and GIS by David Rumsey and Meredith Williams that appears in Past Time Past Place published by ESRI Press.
If you have comments, suggestions, or need help, contact The David Rumsey Collection at .
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