Phantom settlements, or paper towns, are settlements that appear on maps but do not actually exist. They are either accidents or copyright traps. […]
Agloe, New York, was invented on a 1930s map as a copyright trap. In 1950, a general store was built there and named Agloe General Store, as that was the name seen on the map. Thus the phantom settlement became a real one.
Source: Phantom settlement – Wikipedia