The commissioner of school and public lands shall classify all common school and endowment lands into three classes, as follows:

Class 1: To include all lands which are most valuable for agricultural purposes;

Class 2: To include all lands which are most valuable for meadow and pasturage purposes;

Class 3: To include all lands which are most valuable for timber, coal, or other purposes.

Source: SL 1911, ch 224, art 2; SL 1917, ch 339, § 2; RC 1919, § 5634; SDC 1939, § 15.0207.