Gold mining stopped for WWII; gold mines around country were deemed nonessential. However, Independence Mine remained in operation because the rock contained sheelite, which is a source of tungsten, a strategic natural resource. This did not last and the mine was forced to close in 1943. The mine opened in 1946 but the government set a fixed price for gold and operations cost increased as well. Despite these factors, the owners intended to reopen the mine after it closed again in 1951 but this of course was never realized. The park was created in the late 1970s.