(Christensen, 1917, SD-49-02) N. of Sioux Falls, Minnehaha County, SD. SD115 N. 3.1 miles from jct with I90 exit 399 at the NE corner of Sioux Falls, W. (curves NW) on Concord Dr. 0.2 miles to the barn to the W. (N43 39.071 W96 42.931) Photo 6-20-02.