All traits of the todays registered horses lead to one of the two foundation sires. In 1934 he got an invitation by the National Western Stock Show Commission in Denver to bring and exhibit a pair of his horses in the Coliseum. Theses two stallions, Leopard and Fox, were very attractive and quite a sensation for the faculty members of the Colorado State University. They also accepted the breeds name- Colorado Ranger, which means Colorado horses bred under range conditions and that was the official name that is still in use. These two horses became the descendents of the breed. Crossed with other horses they created two foals that were declared as the foundation stallions, named Patches and Max.
One the oldest horse registry in the USA is actually the Colorado Ranger Horse Association CRHA. It is a bloodline registry, established in 1935 by Mike Ruby with an agreement in 1938. He was its first president and stayed as president till he died. The main goal of the association is to promote and protect the breed. Today the Colorado Ranger Horse Associations home is in Pennsylvania. They organize many events and shows during every weekend and enjoy watching and showing their horses in this family reunion.The Colorado Ranger has to meet additional requirements to be registered. All of them contain Appaloosa, Arabian horse, Thoroughbred or American Quarter Horse bloodlines.