The History of Freight | Freight Leadville
In 1929, Climax Mine reported its first profits from producing molybdenite ore, a steel hardener. For several decades, Climax Mine in Leadville reigned as the lead producer of molybdenum. For many years, the mine supplied three-fourths of the world's supply. In 1982, Climax closed and mining employment dropped from 3,180 to 200 by 1988.