View the shoreline through the years

NOAA recently released a collection of more than 7,000 historical U.S. shoreline topographic images for viewing in Google Earth. The NOAA Historical Shoreline Survey Viewer has thousands of layers that you use to see what the U.S. shoreline looked like going back as far as 1841. The layers can be viewed alone or your can overlay them on top of current imagery. You can launch the KMZ file for this imagery by clicking here or you can read about how to navigate this imagery on the NOAA page. (from Free Technology for Teachers)

To learn more, click the above hyperlinked text.

Note: NOAA is the National Oceanic and Atmospheric Administration.