What are fixed reference points used for in surveying?

What are fixed reference points used for in surveying?

• A. Fixed reference points supplementing regular public land survey monuments. The survey or mineral claim is tied to the location monument, which is later tied to the public land surveys; most of them are marked stones with rock cairns nearby.
• B. They are decorative markers.
• C. They are used only for urban surveys.
• D. They are temporary markers used in construction.

Answer: (A)

Fixed reference points act as stable anchors that connect local survey measurements to a broader, standardized framework. They provide precise positions (and often elevations) that other measurements can be tied to, so a survey or mineral claim can be located consistently within the public land survey system. In practice, the work for a parcel is tied to a location monument, and that monument is then tied into the larger network of public land surveys. These points are typically permanent markers—often stones with nearby rock cairns—designed to endure for generations. They are not decorative, not limited to urban projects, and not temporary markers used in construction.