Sections 31-4-190, 31-4-191 - State Highway 109 from U.S. Highway 12 to State Highway 15. State Highway 115 from U.S. Highway 18 to Interstate Highway 29 - South Dakota Statutes

31-4-190. State Highway 109 from U.S. Highway 12 to State Highway 15. The state trunk highway system includes the following in Grant and Roberts counties:
From a point on U.S. Highway 12 in Big Stone City in the northwest quarter of section seventeen, township one hundred twenty-one north, range forty-six west, thence northwest to State Highway 15 east of Hartford Beach near the northwest corner of section twelve, township one hundred twenty-two north, range forty-eight west.

Source: SL 1984, ch 209, § 63.