Credit: U.S. Library of Congress

The closing of the Union Stock Yard

At midnight on July 30, 1971, the 105-year-old Union Stock Yard closed and the nearly square mile bounded by Halsted Street, Ashland Avenue, Pershing Road (formerly 39th Street), and 47th Street—once hog (and cattle) butcher for the world, to paraphrase Carl Sandburg—became the Stockyards Industrial Park. All that’s left of the yards’ former glory/infamy is a remnant of the Union Stock Yard Gate arching over Exchange Avenue. Designed by Burnham and Root and designated a National Historic Landmark in 1981 (not to mention a Chicago Landmark in 1972), it sports a giant limestone head said to be “Sherman,” the prizewinning bull named for stockyard magnate John B. Sherman, who also happened to be Burnham’s father-in-law. —Anne Spiselman