Red barn from the 6666 ranch at the national ranching heritage center in lubbock, texas the four sixes ranch, stylized as 6666 ranch, is a ranch in king county, texas, as well as carson county รขโ‚ฌยฆ The ranch is dedicated to superior water and range management practices, working as much as possible to reclaim land for native grasses and restore or improve natural water resources. From acclaimed quarter horses to genetically-superior angus cattle, the 6666 ranch is a legendary working ranch located near guthrie, texas.