Yankton County boundaries

Beginning at the northeast corner of township ninety - six north of range fifty - four west of the fifth principal meridian, thence west and along the township line between townships ninety - six and ninety - seven to the northwest corner of township ninety - six, north of range fifty - seven, west; thence south and along the range line between ranges fifty - seven and fifty - eight west, as extended, to its intersection with the boundary line between the states of South Dakota and Nebraska; thence easterly and along said state line to the range line between ranges fifty - three and fifty - four, as extended; thence north and along said range line to the place of beginning. Source: SL 1862, ch 19 , § 1; SL 1870-1, ch 10 , § 3; SDC 1939, § 12.0169.