South Dakota Codified Laws 7-1-2. Aurora County boundaries
Beginning at the northeast corner of township one hundred five north of range sixty–three, west of the fifth principal meridian; thence west and along the township line between townships one hundred five and one hundred six, to the northwest corner of township one hundred five north of range sixty–six west; thence south along the range line between ranges sixty–six and sixty–seven to the southwest corner of township one hundred one north of range sixty–six west; thence east and along the base line to the southwest corner of township one hundred one north of range sixty–three west; thence north and along the range line between ranges sixty–two and sixty–three west, to the place of beginning.
Source: SL 1879, ch 12, § 10; SL 1881, ch 42, § 1; SL 1883, ch 23, § 1; SDC 1939, § 12.0103.