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Subject
Boundaries
9
Administrative and political divisions
5
Environment
3
Society
3
Cities and towns
2
Counties
2
Ecological reserves
2
Farming
2
Natural areas
2
Natural resources
2
Open spaces
2
Parks
2
Public lands
2
Roads
2
Streets
2
Transportation
2
Agriculture
1
Bridges
1
Census districts
1
Ecological zones
1