m0smithslash's Journal: Now I get it

Cartographer http://www.themorningnews.org/archives/how_to/tricks_of_the_trade.php

Mapmakers will often use "copyright traps," bits of information in their maps that are purposefully wrong. They might label a body of water "Lake Strongbad," for instance, and then examine the next editions of competitors' maps to see if the incorrect information makes an appearance.