Yes, it is. because if you look on another website you will find an answer:)
The Appaloosa
The Nez Perce, who originally bred the Appaloosa horse, were from mainly central Idaho, but also lived in northeastern Oregon, and southeastern Washington. So Idaho is where they're from.
The Appaloosa Horse Club is responsible for maintaining the purity of this breed, which first achieved fame as the horse ridden by the Nez Perce Indians of Idaho.
The Appaloosa was the first horse breed to be acquired by the Nez Perce tribe around the 1700's leading to the tribe developing into excellent horsemen and breeders. Settlers began to refer to their horses as "a Palouse horse" in reference to the Palouse River in north Central Idaho. The term evolved from that to "Palousey", "Appalousey" and finally "Appaloosa". An Appaloosa Horse Club was chartered in 1938 and has become one of the leading equine breed registries in the world. The Appaloosa was named Idaho's state horse in 1975 because of its importance to Idaho history. Many of the settlers bred their horses with the appaloosa, almost causing it to go extinct.
The Appaloosa breed became the state horse in 1975 following an introduction to the Legislature by sixth grade students from Eagle, Idaho. (Wikipedia)
It is believed to be a horse bred by Native Americans
Appaloosa is a type of horse. Horses are mammals. Appaloosas have a spotted pattern on their coat. They also have striped hooves. They are known as the horse of Native Americans.
There are several breeds of horse that are used for flatracing. These include thoroughbred, quarter horse, Arabian, and Appaloosa. (Note . . . The world headquarters of the Appaloosa Horse Club is in my city in northern Idaho) Secretariat is a thoroughbred.
Appaloosa's live all over the state of Idaho and pretty much all over the USA.
The Appaloosa horse breed is the official state mammal of Idaho. Syringa is the official state flower of Idaho. Western White Pine is the official state tree of Idaho.
The Appaloosa horse was bred by the Nec Perce Indians.
appaloosas are registered with the American Appaloosa Horse Association (AAHA)The international breed registry is the APA: Appaloosa Horse Association