Category: Uncategorized

I often need to access historical maps produced by the Office of the U.S. Coast Survey.  The agency started drawing charts in 1807 once President Thomas Jefferson created the division.  Over time the agency, now a part of NOAA, produced an enormous quantity of highly technical maps, including products that aren’t typically thought of as being part of this work.  As…

If you are looking for old maps on the Delmarva Peninsula, or anywhere in the nation, be sure to check out U.S. Topo Maps.  These valuable research tools show physical and cultural features of the landscape and contours of the land, beginning in the 1880s when the topographic program began.  Because the sheets are regularly issued, they are…

The Digital Public Library of America (DPLA) is a free online library that provides access to millions of historical documents, public domain works, vintage photographs, maps, audiovisuals, and more from libraries, archives, and museums across the United States. In one place a visitor is able to easily find items from a wide range of institutions….

The U. S. Geological Survey (USGS) Photographic Library in Denver, CO has a helpful collection of digitized photographs available for researchers.  These images, beginning in 1868, provide a visual history of the discovery, development and science of the United States and its Geological Survey.  There are over 400,000 pictures in the collection and some have…