Subject
- Boundaries6
- Environment6
- Biology and Ecology3
- Oceans3
- Economy2
- Geoscientific Information2
- Inland Waters2
- Protected areas2
- Society2
- Wilderness areas2
- Administrative and political divisions1
- Africanized honeybee1
- Bathymetric maps1
- Battlefields1
- Biotic communities1
- Calderas1
- Cities and towns1
- Coastline1
- Contours (Cartography)1
- Dams1