The Big 4 Rodeos Association was established in 1948 and is one of the oldest such organizations. It is comprised of four rodeos (in order of occurrence), the Horse Heaven Round Up Rodeo. Walla Walla Fair & Frontier Days. the Lewiston Roundup and the Pendleton Round-Up. For the contestant accumulating the most points while competing in all four rodeos, the Big 4 presents a cash award and Stoney Saddlery saddle with the Big 4 Rodeos design work.