Grandview Mine

	Grandview Mine
	U.S. National Register of Historic Places
	U.S. Historic district
	Grand Canyon, Arizona
Coordinates	36°1′5″N 111°58′32″W / 36.01806°N 111.97556°W
Built	1892
NRHP reference No.	74000347
Added to NRHP	July 09, 1974

The Grandview Mine, also known as the Last Chance Mine, was operated by Pete Berry from 1892 until 1901 in what later became Grand Canyon National Park. The Grandview Mine Historic District includes what remains of the mine workings and machinery as well as the ruins of a stone house and sleeping shanty. Physical evidence, including low stone walls and construction debris, suggests that several wood structures were also originally present on the site.

Pete Berry established Last Chance Mine on

Columbian Exposition in Chicago, the mine did not prove profitable, and in 1901 Berry and his partners sold it to the Canyon Copper Company, who operated it until 1907.^[2] The mine was then acquired by William Randolph Hearst, who sold it to the National Park Service in 1940.^[3]

The mineralization at the mine is secondary copper minerals in a breccia zone along a monocline flexure in the Redwall Limestone, which is bleached, brecciated and marbleized below the overlying Supai Group. Grandview is the type locality for grandviewite, a copper aluminium silicate.^[4]^[5] Grandview produced exceptionally fine mineral specimens of cyanotrichite, brochantite, chalcoalumite, and many other copper and uranium minerals. These specimens are now rare, as mineral collecting is not permitted in the National Park.^[4]

In 2009, the mines were gated to protect bat roosts, support on-going bat research, preserve historic mine resources, and promote visitor safety. The gating project was done by Mine Gates, Inc., with support from Grand Canyon National Park, Bat Conservational International, and Freeport-McMoRan. Details of the mine site, as well as manufacturing and installation of each bat gate are documented on the MineGates site.^[6]

Cyanotrichite crystals from the Grandview mine

References

^ "National Register Information System". National Register of Historic Places. National Park Service. April 15, 2008.
^ "Grandview Mine". List of Classified Structures. National Park Service. November 25, 2008. Archived from the original on May 21, 2011. Retrieved November 26, 2008.
^ Holland, Jr., F. Ross (August 31, 1972). National Register of Historic Places Inventory-Nomination: Last Chance Mine (pdf). National Park Service.
^ ^a ^b Grandview Mine data at Mindat.org
^ "Grandviewite: Grandviewite mineral information and data". www.mindat.org. Retrieved May 23, 2016.
^ "Grandview and Last Chance Mines, Grand Canyon National Park". MineGates Inc. Retrieved May 23, 2016.

External links

Gallery of mineral specimens from Grandview mine by NPS

[nris-1] "National Register Information System". National Register of Historic Places. National Park Service. April 15, 2008.

[2] "Grandview Mine". List of Classified Structures. National Park Service. November 25, 2008. Archived from the original on May 21, 2011. Retrieved November 26, 2008.

[nrhpinv2-3] Holland, Jr., F. Ross (August 31, 1972). National Register of Historic Places Inventory-Nomination: Last Chance Mine (pdf). National Park Service.

[mindat-4] Grandview Mine data at Mindat.org

[5] "Grandviewite: Grandviewite mineral information and data". www.mindat.org. Retrieved May 23, 2016.

[6] "Grandview and Last Chance Mines, Grand Canyon National Park". MineGates Inc. Retrieved May 23, 2016.

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v t e National Register of Historic Places in Grand Canyon National Park
National Historic Landmarks	1956 Grand Canyon TWA – United Airlines Aviation Accident Site El Tovar Hotel Grand Canyon Park Operations Building Grand Canyon Power House Grand Canyon Railroad Station
National Historic Landmark District	Grand Canyon Lodge Grand Canyon Village Historic District Mary Jane Colter Buildings
Other NRHP districts	Desert View Watchtower Historic District Grand Canyon Inn and Campground Grand Canyon Railway Grandview Mine Water Reclamation Plant
Other NRHP properties	El Tovar Stables Grand Canyon North Rim Headquarters Navajo Steel Arch Highway Bridge Buckey O'Neill Cabin Ranger's Dormitory Superintendent's Residence Trans-Canyon Telephone Line, Grand Canyon National Park Tusayan Ruins
Individual Mary Jane Colter NHL properties	Hermit's Rest Desert View Watchtower Hopi House Lookout Studio
See also: National Register of Historic Places listings in Grand Canyon National Park

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