S.D. Codified Laws § 40-23-4
Cooperative grazing associations organized under this chapter shall, upon completion of organization and incorporation, file with the register of deeds in the county or counties in which any such lands lie, a map or plat clearly showing the boundaries of the district proposed to be created and the name of such district. Whenever any incorporated grazing district shall enlarge or reduce the area included within its district, or change or modify its boundaries, it shall file copies of a revised map or plat as provided above for the original map or plat. Failure to file maps or plats as above provided shall be sufficient cause for a revocation, by the county commissioners, of any lease of county land which shall have been made to said district.
SDCL 40-23-4