What does a reference marker indicate in a boundary survey?

A reference marker in a boundary survey serves the purpose of indicating a position that is impractical to monument directly. This is often the case due to physical obstacles, changes in the terrain, or other challenges that make it difficult to establish a permanent physical monument at the exact location of a property boundary. Therefore, a reference marker can provide a means of establishing an equivalent position on the ground for future use, allowing surveyors to refer back to this point even if they cannot place a physical marker there directly.

This function of reference markers is crucial in maintaining the accuracy and reliability of property boundary documents and future surveys, ensuring that boundaries can be consistently determined without needing to revisit or disturb the exact location, which may be obstructed or in a difficult-to-access area.