Arizona Veterinary Medical Association - Dedicated to promoting excellence in veterinary medicine, and educating the public about animal health care and well-being. Provides directory of member specialists and hospitals. Twisted Tree Farm - A full service equestrian training facility. Twister Heller Horse Training and Breeding - Arizona horse trainer, training, breeding, and sales. Horse training clinics and horsemanship schools. Parkinson Quarter Horses - Quarter horses, Paint horses and Appaloosas for sale, and stallions at Kirkland Valley Ranch. Arizona Paint Horse Club - Club with upcoming shows and events. Arabian Horse Association of Arizona - Sponsors the Scottsdale Arabian Horse Show at West World. This annual Arizona event is one of the largest Arabian horse shows in the country. Olsen's Grain - Purina Mills dealer, carrying a full line of horse, cattle and pet supplies in Arizona.