Here is an interesting piece that was printed in The Badlands Cow Boy on February 14, 1884. It is interesting to hear them talk about the horses of the ND Badlands.
https://www.newspapers.com/clip/84374407/sioux-ponies/?fbclid=IwAR3Qdvjff65pt1nVTUciDHGo-gFjKIMuq7ugZw73Wps2yO0PMGD0GVBdHvo