The Union Stockyards of Omaha, Nebraska, were founded in 1883 in South Omaha by the Union Stock Yards Company of Omaha.[1] A fierce rival of Chicago's Union Stock Yards, the Omaha Union Stockyards were third in the United States for production by 1890.[2] In 1947 they were second to Chicago in the world. Omaha overtook Chicago as the nation's largest livestock market and meat packing industry center in 1955, a title which it held onto until 1971.[3] The 116-year-old institution closed in 1999.[4] The Livestock Exchange Building was listed on the National Register of Historic Places in 1999.[5]