The phenomenon you are referring to is one of the most fascinating intersections of geography, intellectual property, and cartographic history: the creation of "paper towns" (also known as phantom settlements, trap streets, or copyright traps).
While the fierce protection of cartographic secrets dates back to the Renaissance and the Age of Discovery, the specific legal use of "paper towns" to prove copyright infringement is primarily a feature of 19th- and 20th-century commercial mapmaking.
Here is a detailed explanation of how paper towns work, their historical context, and the most famous example of a fake town that accidentally became real.
The Mechanics of a "Paper Town"
A paper town is exactly what it sounds like: a town that exists only on paper.
Creating a map is a tremendously labor-intensive and expensive process, requiring geographical surveys, mathematical projection, and precise artistic rendering. Because a map is fundamentally a collection of facts (which are difficult to copyright), mapmakers faced a unique problem: how could they prove a rival company had stolen their work rather than just surveying the same area themselves?
The solution was the "copyright trap." A mapmaker would deliberately invent a small, fictitious town, a fake street (a "trap street"), or a nonexistent bend in a river, and hide it in an obscure part of their map. If a rival cartographer copied their map, they would unknowingly copy the fake town as well. If the original mapmaker found their imaginary town on a competitor's map, they had undeniable proof of plagiarism.
Historical Context: The Renaissance to Modern Era
During the Renaissance (roughly the 14th to 17th centuries), cartography was deeply tied to national security and global trade. As European powers explored the globe, accurate maps were treated as highly classified state secrets.
While formal "copyright law" as we understand it did not exist during the Renaissance (the first formal copyright law, the Statute of Anne, was passed in Britain in 1710), Renaissance mapmakers were fiercely protective of their intellectual property. Cartographers like Gerardus Mercator and Abraham Ortelius operated in a highly competitive, cutthroat industry. Plagiarism was rampant; mapmakers frequently copied each other’s copper plates.
In this era, errors on maps were often genuine mistakes—such as the "Mountains of Kong" or the "Island of California"—born from misunderstandings, folklore, or sailors' tall tales. However, as the printing press democratized map ownership and commercial cartography exploded in the 19th and 20th centuries, mapmakers explicitly began using intentional fakes to protect their commercial investments.
The Most Famous Example: Agloe, New York
The most famous example of a paper town occurred in the 1930s and perfectly illustrates how these traps worked—and how they could backfire.
In the 1930s, the General Drafting Company (GDC) was creating a road map of New York State. The company’s founder, Otto G. Lindberg, and his assistant, Ernest Alpers, decided to create a copyright trap. They took their initials—O.G.L. and E.A.—scrambled them, and created the name "Agloe."
They placed Agloe on a dirt road intersection in the Catskill Mountains.
A few years later, the massive mapping giant Rand McNally published its own map of New York State. Lindberg and Alpers looked at the map and were thrilled to find "Agloe" sitting right at the same intersection. GDC triumphantly threatened to sue Rand McNally for copyright infringement.
However, Rand McNally’s defense was shocking: they claimed they had not stolen the map. Their surveyors had driven to that exact intersection in the Catskills, and there was a building there called the Agloe General Store.
How did this happen? Years earlier, a local man had opened a general store at that intersection. Trying to think of a name, he looked at a map distributed by Esso (which was produced by the General Drafting Company). Seeing that the map called the area "Agloe," he named his business the Agloe General Store. Because the store actually existed, the county administration recognized the name, and Rand McNally's surveyors genuinely recorded it.
Through the sheer power of cartographic authority, Lindberg and Alpers’ fake town had been willed into reality. (This story later inspired John Green’s bestselling novel Paper Towns).
Beyond Maps: Mountweazels
The practice of inserting fake entries to catch plagiarists is not limited to mapmakers. It is heavily utilized across reference materials: * Dictionaries and Encyclopedias: These are called "Mountweazels" (named after Lillian Virginia Mountweazel, a fake biography inserted into the 1975 New Columbia Encyclopedia). * Trivia and Code: Trivia compilers will often invent a fake fact, and phonebook companies have historically inserted fake names (sometimes called "nihilarticles") to catch data-scraping competitors.
Conclusion
While Renaissance mapmakers dealt with plagiarism through secrecy and royal patents, the modern commercial mapmaker pioneered the "paper town." These fictitious settlements highlight an era before digital watermarks and satellite imagery, where the only way to protect a piece of intellectual property was to deliberately introduce a tiny, invisible lie into a document otherwise dedicated to absolute truth.