The sugar mill at Clewiston is the main plant for U.S. Sugar, for decades the largest sugar producer in the country. U.S. Sugar came to the region in 1931, buying the Clewiston Sugar House from the Southern Sugar Corporation, two years after it was built. U.S. Sugar expanded the plant, and the town of Clewiston grew around it as a company town. The company was founded and run by Charles Stewart Mott, who was better known as one of the founders of General Motors. It is now mostly employee owned, and is a more diversified regional agricultural company, with 215,000 acres of land in the Everglades Agricultural Area, and 120 miles of railway with 1,100 railcars to move cane and other agricultural products.