Digital Maps and Geospatial Data | Princeton University
U.S. Counties (Generalized), 2013
U.S. Counties (Generalized) represents the counties of the United States in the 50 states and the District of Columbia.
- United States, U.S. Counties, and Counties
- Farming, Boundaries, and Society
- 1992, 2002, 2004, 2011, 2010, 2007, 2012, and 2013
- Held by: