Established in 1948, the Big 4 Rodeo Association consists of the Horse Heaven Round Up, Walla Walla Frontier Days, Lewiston Round Up, and the Pendleton Round- Up. While competing in the Big 4 Rodeos, contestants accumulate points, the contestant who accumulates the most points receives a cash prize and saddle from Stoney Saddlery on behalf of the Big 4 Rodeo Association.