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1. Ohio Block Groups 2002

2002. Geographic Data Technology, Inc. (GDT). Ohio Block Groups represents the U.S. Census block groups of Ohio. Environmental Systems Research Institute, Inc. (ESRI).

2. Ohio Major Roads 2002

1999. Geographic Data Technology, Inc. (GDT). Ohio Major Roads represents interstate, U.S., and state highways and other major thoroughfares within Ohio. Environmental Systems Research Institute, Inc. (ESRI).

3. Ohio Rivers 2002

1997. Geographic Data Technology, Inc. (GDT). Ohio Rivers represents streams and rivers within Ohio. Environmental Systems Research Institute, Inc. (ESRI).

4. Ohio Tracts 2002

2002. Geographic Data Technology, Inc. (GDT). Ohio Tracts represents the U.S. Census tracts and block numbering areas (BNA) of Ohio. Environmental Systems Research Institute, Inc. (ESRI).

5. Ohio ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Ohio ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a fi... Environmental Systems Research Institute, Inc. (ESRI).