Gulltown is the major port city of the Vale of Arryn. It is located in a fine natural harbor at the northern tip of the Bay of Crabs, southeast of the Eyrie and south of nearby Runestone. It is the largest city in the Vale, but is much smaller than Oldtown and King's Landing.

Gulltown is ruled by House Grafton and also contains a cadet branch of the Vale's rulers, House Arryn of Gulltown.According to semi-canon sources, there are branches of House Shett in or near the city.