(Reptile Gardens, SD-51-04) S. of Rapid City, Mt. Rushmore Township, Pennington County, SD. US16 S. 2.3 miles from jct with Catron Blvd on the S. side of Rapid City to the bldg on the W. side of the road at 8955. (N43 59.460 W103 16.325) Photo by Mark Comstock 7-21-24.