SDCL § 31-4-205: State Highway 204 from State Highway 1806 to State Highway 1804.

The state trunk highway system includes the following in Stanley and Hughes counties:

From a point on State Highway 1806 in the northeast quarter of section thirty-one, township six north, range thirty-one east, thence northeast across Oahe Dam to State Highway 1804 in the northwest quarter of section six, township one hundred eleven north, range seventy-nine west.