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Climax Molybdenum Mine

Located in Lake County beside Fremont Pass, the Climax Molybdenum Mine started production in 1918 and grew to become the world’s largest underground mine. Deemed a national priority during World War II because of molybdenum’s importance in hardening…

Henderson Molybdenum Mine

Located about nine miles west of Empire, the Henderson Molybdenum Mine was developed by American Metal Climax (AMAX) and opened in 1976 to work one of the world’s largest known molybdenum deposits. A conveyor belt for transporting ore connects the mine…

Leadville

At an elevation of 10,152 feet in the central Rocky Mountains, Leadville is the Lake County seat and the highest incorporated city in the United States. Gold first brought prospectors to the area in the early 1860s, but Leadville itself was not…