(Horticulture Hall, SD-51-02) in Rapid City, Pennington County, SD. SD44 (Omaha St.) W. 0.5 miles from jct with US16 bypass, S. on La Crosse St. about 0.3 miles to the Pennington County fairgrounds, on the E. side of the road. (6-01, approx location) Thanks to Jean Trester.