34-25-101. System of plane coordinates adopted; zones.
(a) The system of plane coordinates which has been established by the office of National Geodetic Survey, or its successors, for defining and stating the positions or locations of points on the surface of the earth within the state of Wyoming is adopted and hereafter shall be known and designated as the "Wyoming Coordinate System NAD 1983."
(b) For the purpose of the use of this system, the state is divided into an East Zone, an East Central Zone, a West Central Zone and a West Zone:
(i) As established for use in the East Zone, the Wyoming Coordinate System shall be named, and in any land description in which it is used it shall be designated, the "Wyoming Coordinate System NAD 1983, East Zone." The following counties will use Wyoming Coordinate System NAD 1983, East Zone: Laramie, Albany, Platte, Niobrara, Converse, Weston, Crook, Campbell, and Goshen;
(ii) As established for use in the East Central Zone, the Wyoming Coordinate System shall be named, and in any land description in which it is used it shall be designated, the "Wyoming Coordinate System NAD 1983, East Central Zone." The following counties will use Wyoming Coordinate System NAD 1983, East Central Zone: Carbon, Natrona, Johnson, Sheridan, Washakie, and Big Horn;
(iii) As established for use in the West Central Zone, the Wyoming Coordinate System shall be named, and in any land description in which it is used it shall be designated, the "Wyoming Coordinate System NAD 1983, West Central Zone." The following counties will use Wyoming Coordinate System NAD 1983, West Central Zone: Sweetwater, Fremont, Hot Springs, and Park;
(iv) As established for use in the West Zone, the Wyoming Coordinate System shall be named, and in any land description in which it is used it shall be designated, the "Wyoming Coordinate System NAD 1983, West Zone." The following counties will use Wyoming Coordinate System NAD 1983, West Zone: Uinta, Lincoln, Sublette, and Teton; also Yellowstone National Park.