Those searching for gold found hard rock (lode) gold scattered in quartz veins throughout the granite in the Talkeetna Mountains. These veins were created by hydrothermal action that filled fractures in the rock. Erosion loosened flakes of gold, and flowing water eventually washed the gold-bearing gravel into a stream. Throughout the history of gold mining, placer mining has preceded lode mining, and this area was no exception. The rough-textured gold found in the bottom of pans and sluice boxes hinted at something more: a nearby source, or mother lode.

Robert Lee Hatcher discovered and staked the first lode gold claim in the Willow Creek Valley in September 1906, and others soon followed. But lode mining was expensive for an individual operator; it required elaborate tunnels and heavy equipment, so companies merged to pool resources and reduce expenses.

What is now called Independence Mine was once two mines: The Alaska Free Gold (Martin) Mine on Skyscraper Mountain, and Independence Mine on Granite Mountain. In 1938 the two were bought together under one company, the Alaska-Pacific

Consolidated Mining Company (APC). With a block of 83 mining claims, APC became the largest producer in the Willow Creek

Mining District. The claims covered more than 1,350 acres and included 27 structures. In its peak year, 1941, APC employed 204 men, blasted nearly a dozen miles of tunnels, and produced 34,416 ounces of gold worth $1,204,560; today $17,208,000. Twenty-two families lived in nearby Boomtown, with eight children attending the Territorial School in the new bunkhouse.

By 1942, the United States had entered World War II, and the War Production Board designated gold mining as nonessential to the war effort. Gold mining throughout the United States came to a halt, but Independence Mine continued to operate because of the presence of sheelite. Sheelite occurs in some of the quartz veins along with gold, and was a source of tungsten, a strategic metal. But because Independence Mine's scheelite production was low, the exemption was short-lived. In 1943, Independence Mine was ordered to close.

The wartime ban was lifted in 1946, but gold mining was slow to recover. After the war, gold could be sold only to the U.S. government at a fixed rate of $35 per ounce. Postwar inflation raged, and gold mining became an unprofitable venture. Finally, in January of 1951, after mining nearly 6 million dollars' worth of gold, Independence Mine was closed by APC,

and a chapter of Alaska's gold mining history came to an end. In 1974, Independence Mine was entered into the National Register of Historic Places, a list of cultural resources significant to American history. In the late 1970's, 271 acres of land were donated to the Alaska Division of Parks & Outdoor Recreation for establishment of Independence Mine State Historical Park. On January 16, 1980, title to the acreage was transferred to the State of Alaska.