All of the following are considered valid monuments for the purpose of legally describing real...

A monument used in a legal description is typically a physical or identifiable boundary object or feature used to locate land. An iron pin is a classic artificial monument. A highway can serve as a visible boundary reference. A fence line may also function as an artificial monument when used in the description or relied on as boundary evidence. A “corner of a recorded subdivision lot,” by itself, is not a physical monument; it is a legal or plat reference point unless an actual monument marks it on the ground. This distinction matters because title descriptions must allow the property to be located with certainty. The Pennsylvania title outline includes legal descriptions, types of descriptions, measurements, language, structure, format, and interpretation.