SDCL § 31-4-163: State Highway 43 from Nebraska to U.S. Highway 18.

The state trunk highway system includes the following in Gregory County:

From a point on the Nebraska state line near the southeast corner of section thirty-three, township ninety-five north, range sixty-eight west, thence northwesterly to near the northwest corner of section thirty-three, township ninety-five north, range sixty-eight west.