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Grand View Mine (Last Chance Mine; No. 1 Pat claim 3591; No. 5 Pat claim 3592a; No. 4 Pat claim 3592a; Canyon Copper Mine; Grand Canyon Mine), Horseshoe Mesa, Grandview District, Coconino Co., Arizona, USA

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A former Cu-U mine located in the NE¼ sec. 5, T30N, R4E, 0.8 km (0.5 mile) SSE of Horseshoe Mesa (coordinates of record) (Vishnu Temple 15 minute topo map), N of Grandview Point, South rim, Grand Canyon, on National Park Service land (Grand Canyon National Park). The Grand View Mine and (this) Last Chance Mine are the same (Mineralogy of Arizona, 3rd. ed.). Discovered 1890. First production was 1893 and the last was 1916.

The Grandview Mine officially closed in 1907, but went through a series of owners until William Randolph Hearst acquired the Grandview Mine. Hearst sold the property to the United States National Park Service in 1940 and it is now part of the Grand Canyon National Park. The Grandview Mine is now a roost for protected bat species including Townsend’s Big-eared Bat (Corynorthinus townsendii).

Mineralization is secondary Cu minerals with gangue species in a breccia zone along a monocline flexure in Shea basalt hosted in the Navajo sandstone. Redwall limestone is bleached, brecciated and marblized. The Grandview monocline lies along the WNW-trending Cremation fault.

Mineral List



33 entries listed. 32 valid minerals. 1 (TL) - type locality of valid minerals.

The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Rogers, A.F. (1922), The optical properties and morphology of bisbeeite, American Mineralogist: 7: 153-154.

Gordon, S.G. (1923), Recently described 'bisbeeite' from the Grand Canyon is cyanotrichite, American Mineralogist: 8: 92-93.

Galbraith, F.W. & D.J. Brennan (1959), Minerals of Arizona: 65.

Roseveare, G.H. (1969), in: USGS & Arizona Bureau of Mines, and U.S. Bureau Of Reclamation, Mineral and water resources of Arizona, Arizona Bureau of Mines Bulletin: 180.

Leicht, W.C. (1971), Minerals of the Grandview Mine, Mineralogical Record: 2: 214-221.

Breed, W.J. & Roat, Ed (1974), Geology of the Grand Canyon: 172, 174.

Niemuth, N.J. & K.A. Phillips (1992), Copper Oxide Resources, Arizona Department of Mines & Mineral Resources Open File Report 92-10: 6 (Table 1).

Wenrich, Karen J., et al (1992), USGS Bulletin 1683-D: D2.

Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 102, 123, 125, 127, 146, 157, 160, 162, 198, 201-202, 271, 285, 297, 316, 322, 365, 374, 429.

Arizona Department of Mineral Resources, Last Chance Mine file.

Bureau of Land Management Mining District sheet No. 102.

Emmons, S.F., USGS Bulletin 260: 221-232.

U.S. Atomic Energy Commission, USAEC Preliminary Report 172-479: 57.

USGS Minerals Yearbooks 1902-1967.

Unknown Author (2009), Grandview and Last Chance Mines – Bat gating project.

External Links

Minegates.com

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