Atlases are one resource that can substantially assist in your research. While the word "atlas" might make you think of maps, that's not always their main focus. Some are focused on culture, or history, or, yes--geography. Take a look at some of these suggested atlases for more information about your topic! Please note, though, that physical atlases are available for in-library use only. The online atlases and resources listed below, however, can be accessed from anywhere.
Take a look at one of these physical atlases here at the Adams Library for more information about your topic of choice.