Colo. Rev. Stat. § 38-44-112
Any uncertain line, uncertain corner, or uncertain boundary of an existing parcel of land that is recorded in the real estate records in the office of the clerk and recorder for the county where the land is located and that is in dispute may be determined and permanently established by written agreement of all parties thereby affected, signed and acknowledged by each as required for conveyances of real estate, clearly designating the same, and accompanied by a map or plat thereof that shall be recorded as an instrument affecting real estate, and shall be binding upon their heirs, successors, and assigns. If the map or plat is prepared by a licensed professional land surveyor, monuments shall be set for any line, corner, or boundary included in the agreement.
C.R.S. § 38-44-112