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Start Over Author Geographic Data Technology, Inc. (GDT) Bounding Box -40.000931 39.999015 -39.999064 40.000987

1. United States Designated Market Areas, 1996

Datasets Columbia University Restricted content
2000. Geographic Data Technology, Inc. (GDT) and Environmental Systems Research Institute, Inc. (ESRI). United States Designated Market Areas is a polygon theme representing groups of surrounding counties or split counties (by five-digit ZIP) in which... Environmental Systems Research Institute, Inc. (ESRI).

2. U.S. Designated Market Areas 2002

Princeton University Restricted content
2000. Geographic Data Technology, Inc. (GDT). A U.S. Designated Market Area (DMA) is generally the group of surrounding counties or split counties (by five-digit ZIP) in which metropolitan cent... Environmental Systems Research Institute, Inc. (ESRI).

3. U.S. Populated Place Areas 2002

Princeton University Restricted content
2000. Geographic Data Technology, Inc. (GDT). U.S. Populated Place Areas represents populated place areas that include census designated places, consolidated cities, and incorporated places wit... Environmental Systems Research Institute, Inc. (ESRI).