Google Maps Topography Viewer

GISUser.com has tipped us off on the Google Maps Topography Viewer which has been used to create the following Google Maps tools:

• http://www.simplespatial.com/gmaps/ - Users can view their own data by uploading an image or look through samples.
• http://www.simplespatial.com/ned/ - Mashes up the USGS NED dataset with direct links to Seattle Portland Mt. Rainier and Mt. St. Helens
• Also:World locations on Google Maps

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