Rocky Mountain/KentuckeyMountain Horse / The RMH was developed in the Kentucky Appalacian Mts. in 1890 from a western stallion. In the mid-1900&#39;s a stallion named Old Tobe was used to develop today&#39;s RMH. It is noted for a chocolate palomino coat with flaxen mane &amp; tail, the result of a rare silver dapple gene. / by Barbara Barham