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- Planning and Cadastral203
- Transportation168
- Geoscientific Information45
- Boundaries37
- Geology28
- Counties22
- Imagery and Base Maps21
- Roads21
- Economy15
- Environment15
- Society15
- Biology and Ecology14
- Elevation14
- Inland Waters14
- Administrative and political divisions12
- Digital elevation models12
- Topographic maps11
- Geomagnetism10
- Minerals9
- Mines and mineral resources9