Miss. Code § 89-6-13
For purposes of describing the location of any point in the State of Mississippi, it shall be considered a complete, legal and satisfactory description of such location to give the position of such point on the system of plane coordinates defined in this chapter, provided the connection to the Mississippi Coordinate System is made in accordance with the provisions of this chapter and the standards of practice for surveying as adopted by the Board of Licensure for Professional Engineers and Surveyors. Whenever coordinates are affixed to any point which has previously been described by another system, the coordinates shall be construed as additional evidence of the location of the same point. In the event of any conflict as to the point or its location, the common rules of evidence shall be used to resolve the conflict. When used to reference the position of a point to be cited in recorded description of real property, the description must be written in a form that is tied to the existing land system.
Miss. Code § 89-6-13