The history of this advanced exploration site dates back to the 1860s when the Bluebird mine was first discovered and the 1880s when the Bunker Hill mining district was established. Most of the historical interest in the project came as a result of the massive outcropping of breccias, many with green copper oxide minerals readily recognized. By 1913, the Copper Creek Mining Company and its successors (Minnesota-Arizona Mining Company and Copper State Metals and Mining Company) had constructed a 200-tonne-per-day gravity concentrator, dam and power plant. Approximately 360,000 tonnes of high-grade ore has been extracted over the site's mining history.