1920 Cattlemen's Days 20th Annual Cattlemen's Days in Gunnison, Colorado Rodeo Horse Race Cowboys Cowgirls Cattlemen's Days 1920-07-15 place:879 Cattlemen’s Days Arena 1903-1931 USA organization:787 Gunnison County Stockgrower’s Association gunnison:1377 Racing Program Thursday, July 15, 1920 yes yes