(Christensen, 1917, SD-49-02) N. of Sioux Falls, Minnehaha County, SD. SD115 N. 3.2 miles from jct with I90 (exit 399) at the NE corner of Sioux Falls, W. on Northview 0.15 miles to the barn. (6-20-02, N43° 39.072', W96° 42.936')