Digital Orthophoto Quads
In 1976/1977, the USGS completed an aerial photograph survey of the six main islands (Hawaii, Oahu, Maui, Molokai, Lanai, Kauai) of Hawaii. The aerial photographs were orthorectified and grouped into 127 orthophoto quadrangles. Someone (I’m not sure who) scanned the original paper maps at 400 dpi, and MrSID . . . → Read More: Hawaii Aerial Photographs
The Perry-Castaneda Library Map Collection at the University of Texas at Austin has begun an ambitious project to scan all available pre-1945 USGS topographic maps for all US states that don’t currently have them available online. They are starting with Texas and working their way out from there. As of today, Texas, New . . . → Read More: Nationwide Historic USGS Topo Map Scanning Project
This is a collection of historic maps and birds eye images of Washington DC during the late 1800s and early 1900s. The collection includes 58 highly-detailed topographic maps that appear to have been completed in the 1870s and 1880s of the outlying areas of Washington DC. These were a bit tricky to georeference, but . . . → Read More: Washington DC Historic Maps
The National Register of Historic Places has identified and documented approximately 80,000 districts, sites, buildings, structures, and objects that are significant in American history, architecture, archeology, engineering, and culture. The Register is maintained by the US National Park Service (NPS).
The NPS has created a Google Earth version of the database, which you . . . → Read More: National Register of Historic Places
You may have already seen the Rumsey Historical Maps Layer that is included under the Gallery Layer with Google Earth. But, you may not know that David Rumsey has also created dozens of other maps for Google Earth that are not included in the default layer in Google Earth. These can be accessed by . . . → Read More: Rumsey Map Collection
Aeronautical chart of the Phoenix, Arizona area produced by the US Air Force in 1948
Google Earth Library
NOAA Historical Map and Chart Project
. . . → Read More: Phoenix Arizona Aeronautical Chart, 1948
Currently, this collection has over 2,000 historic USGS Topographic maps covering several areas of the United States. The maps are available in various scales and date back as early as the 1800s in many areas.
First, click on the button below to load the indices into Google Earth.
Just click . . . → Read More: Historic Topos