Leadville National Forest was established as the Leadville Forest Reserve by the U.S. Forest Service in Colorado on May 12, 1905 with 1,219,947 acres (4,936.95 km2). It became a National Forest on March 4, 1907. On May 26, 1930 the entire forest was divided between Arapaho, Cochetopa and Pike National Forests and the name was discontinued. [1]