General:
* Topography: Focuses on the physical features of a region.
* Geopolitics: Examines the relationship between geography and politics.
* Geo-spatial: Relates to the location and spatial distribution of things.
* Spatial science: A broader term encompassing geography and related fields.
More specific:
* Cartography: The art and science of mapmaking.
* Geomorphology: The study of landforms and their evolution.
* Climatology: The study of climate.
* Hydrology: The study of water and its distribution.
* Biogeography: The study of the geographical distribution of organisms.
The best word to use depends on the specific aspect of geography you're referring to.