S.C. Code Ann. § 59-21-50: Participation of small schools which cannot be consolidated.

No one-teacher school shall be deprived of the benefits of this chapter because such school fails to meet the minimum requirements of enrollment and average daily attendance when it is impracticable to consolidate the school with some other school because of mountains, rivers, islands, swamps or other natural causes. The board of education of the county in which the school is located shall be the competent judge in such case.