Wiktionary
n. A locator map, sometimes referred to simply as a locator, is typically a simple map used in cartography to show the location of a particular geographic area within its larger and presumably more familiar context. Depending on the needs of the cartographer, this type of map can be used on its own or as an inset or addition to a larger map.
Wikipedia
A locator map, sometimes referred to simply as a locator, is typically a simple map used in cartography to show the location of a particular geographic area within its larger and presumably more familiar context. Depending on the needs of the cartographer, this type of map can be used on its own or as an inset or addition to a larger map.
Usage examples of "locator map".
Studying the locator map on my visor and the red dots that represented the positions of the reporting soldiers, I saw that we had more or less cleared out two levels of the tunnels that honeycombed the asteroid.
Like other Florida newspapers, the Miami Herald has published a locator map showing the estimated proximity of the fugitive lioness to the Magic Kingdom, Epcot, and the Disney-MGM Studios.