page_title: Keweenaw National Historical Park
section_title: Delaware Copper Mine
hierarchical_section_title: Keweenaw National Historical Park / Heritage Sites / Delaware Copper Mine
caption_attribution_description: English: Entrance to the w:Delaware mine
context_page_description: Keweenaw National Historical Park is a unit of the U.S. National Park Service. Established in 1992, the park celebrates the life and history of the Keweenaw Peninsula in the Upper Peninsula of the U.S. state of Michigan. As of 2009, it is a partly privatized park made up of two primary units, the Calumet Unit and the Quincy Unit, and 21 cooperating "Heritage Sites" located on federal, state, and privately owned land in and around the Keweenaw Peninsula. The National Park Service owns approximately 1,700 acres in the Calumet and Quincy Units. Units are located in Baraga, Houghton, Keweenaw, and Ontonagon counties.
  The Congressional legislation establishing the Park stated, among other things, that:
  The oldest and largest lava flow known on Earth is located on the Keweenaw Peninsula of Michigan. This volcanic activity produced the only place on Earth where large scale economically recoverable 97 percent pure native copper is found.
  The Keweenaw Peninsula is the only site in the country where prehistoric aboriginal mining of copper occurred. Artifacts made from this copper by these ancient Indians were traded as far south as present day Alabama.
context_section_description: The Delaware Copper Mine is located off U.S. Highway 41 (US 41), 12 miles (19 km) south of Copper Harbor, Michigan.  The Delaware Copper Mine provides tours of one of the oldest copper mines in the Keweenaw, dating back to 1846.  The mine had five shafts, with the deepest reaching 1,400 feet (430 m).  The mine is open June through October and offers guided and self-guided tours.
caption: Delaware Mine entrance
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