What is a physical marker established by a surveyor to indicate borders called?

A physical marker established by a surveyor to indicate borders is known as a monument. Monuments serve as fixed reference points on the land, providing a clear indication of property boundaries. They can be made from various materials, such as stone, metal, or concrete, and are often used in legal descriptions of land to clearly delineate where one property ends and another begins.

In land surveying, monuments are essential for establishing and maintaining control over property lines and ensuring accurate representation of land on maps. This is critical for both legal purposes and for the owners’ understanding of their property rights. A monument is recognized as an official marker, whereas terms like boundary line, waypoint, and landmark may describe different types of indicators or features that do not specifically refer to a surveyor’s established physical marker.