SDCL § 5-3-11: Classification of school and endowment lands according to best use.

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.