At age 15, Samuel Burk Burnett was one of the first cowboys to herd Longhorn cattle north to Kansas. One year latter, he was trail boss on a cattle drive up the Chisholm Trail. In 1871, he began assembling one of the largest and most historic ranches in Texas, the “Four Sixes.” Legend states he won the land in a poker game with a hand of four sixes. His empire, including oil, milling, and banking was headquartered in Fort Worth. The 6666 Ranch is now located in West Texas, near Guthrie and covers more than 200,000 acres.