What's the term for locations or indicators used to define property boundaries?

The term that refers to locations or indicators used to define property boundaries is “reference points.” Reference points are critical in real estate and land surveying as they serve as specific markers or coordinates that signify the extent and limits of a property. They help delineate boundaries and provide a basis for establishing the legal description of a property.

Using reference points, surveyors can accurately measure and identify plots of land, which is essential for various purposes, such as sales, development, and legal clarity. These points often include existing landmarks, established survey markers, or geographical features that can be consistently identified.

The other options, while related to real estate and property delineation, do not encompass the broad scope of what reference points represent. Map coordinates are numerical expressions describing locations on a map, property markers could refer to physical markers specifically placed on the property, and survey lines are more specific to the lines drawn during the surveying process rather than the overarching concept of boundaries they help define.