43-22-8. Plane coordinate values--X and Easting--Y and Northing--Definitions.
The plane coordinate values for a point on the earth's surface, used to express the geographic position or location of such point in the appropriate zone of these systems, shall consist of two distances, expressed in United States survey feet and decimals of a foot when using the South Dakota coordinate system of 1927 and expressed in United States survey feet and decimals of a foot when using the South Dakota coordinate system of 1983. One of these distances, to be known as the "x-coordinate" on North American Datum 1927 and "Easting" on North American Datum 1983, shall give the position in an east-and-west direction; the other, to be known as the "y-coordinate" on North American Datum 1927 and "Northing" on North American Datum 1983, shall give the position in a north-and-south direction. These coordinates shall be made to depend upon and conform to plane rectangular coordinate values for the monumented points of the North American Horizontal Geodetic Control Network as published by the United States Department of Commerce, National Oceanic and Atmospheric Administration, and whose plane coordinates have been computed on the systems defined in this chapter. Any such station may be used for establishing a survey connection to either South Dakota coordinate system.
Source: SL 1947, ch 231, §3; SDC Supp 1960, §18.0303; SL 1988, ch 349, §6; SL 1991, ch 364.