In consultation with Shiuwen at Floating Leaves Tea, I took a freely-available NASA satellite map of Taiwan and added in the major tea-growing regions in Taiwan. The map below is our approximation of the major tea-growing regions.
Click on the image for a larger version that is easier to read
There are several different teas that I did not include on the map because they may be produced in several different areas. Jinxuan/Jinshuan, for example, is made in several areas including Pinglin, Nantou and Alishan. Some other teas that I did not put on the map for the same reason I just mentioned include Four Seasons tea (Si Ji Chun) and Cui Yu (also known as Jade Oolong).