Located south of the Ohio River and Louisville, Kentucky, the Fort Knox military installation is the location for the training of U.S. Army Armor and Cavalry forces. Known as the home of Mounted Warfare, Fort Knox is also the location of the U.S. Treasury Department Gold Vault that opened in February 1937. Fort Knox covers 178 square miles and spans parts of Hardin, Meade, and Bullitt Counties. The area was once home to Thomas Lincoln, father of the nation's martyred 16th president, as well as the burial place of Abraham Lincoln's grandmother, Bathsheba Lincoln. Images of America: The Land Before Fort Knox illuminates the past while images bring to light people and places of yesterday.