The Rocky mountain, Kentucky mountain Spotted mountain are basically the same horse with some differences in DNA markers. The Rocky association closed its book (the KMSHA book is now closed too) and there was some disagreement and fear of turning the family tree into a palm with inbreeding. In 1989 the KMSHA split off from the Rocky group. In 2002, the Spotted Mountain Horse Association (SMHA) was formed as a subsidiary of the KMSHA to register spotted mountain horses.
The Rocky, Kentucky, Spotted, Mountain etc folks like to say the horses are different breeds but in my opinion they are all the same. All bred from the same foundation stock.
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