Quad Map
I have never figured out what a Quad map is for. It's required by the zoning department to get a variance. It's a map you get from the zoning department that you get me to certify your location on. Incidentaly, the National Geodetic Survey by the U.S. Army Corp of Engingeers produced large aerial photo-maps of the earth esentialy one quarter of a degree of latitude and longitude. These are called quad maps too. They're really impressive maps. They're not much good to anyone unless you're into invading nations, but they look really neat.
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