These two are related, but they are not the same thing.
Survey monumentation
Survey monumentation is physical markers on the ground that are set or used to mark positions. Examples of survey monumentation include iron pins, rebar, concrete monuments, brass caps, boundary stones, and PK nails. The purpose of monumentation is to physically mark a point so it can be found again later (i.e., property corners or boundaries).
Survey control network
A survey control network provides the spatial framework that survey monumentation points belong to. It is a system of reference points with known coordinates. It provides accuracy, consistency, and reference for all surveys in an area. In Boone, Kenton, and Campbell counties the survey control network consists of 415 concrete monuments. Each control network monument is concrete, and approximately 1-foot in diameter, and 3-feet deep. The top of the monument is usually at, or just below grade, and has a metal cap engraved with the text “Geodetic Network Control Monument” or similar.
How they work together
The survey control network exists on the ground using permanent monumentation (usually concrete pillars in NKY). Note that not all monuments are control points (e.g., a property corner pin), and that not all control points have permanent monuments (e.g., temporary GPS control).
The LINK-GIS Control Network Recovery page helps you to quickly find Survey Monuments in Boone, Kenton, Campbell or Pendleton County. You can also learn how to Locate Survey Monuments and interact with additional layers in the LINK-GIS map viewer.
