Help|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on MindatThe Mindat Store
Minerals by PropertiesMinerals by ChemistryRandom MineralSearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Big Eye Mine group, Slumgullion Pass, Kofa Game Range, Castle Dome District, Castle Dome Mts, Yuma Co., Arizona, USA

This page is currently not sponsored. Click here to sponsor this page.
A former surface and underground Au-Ag-Cu-Pb-Zn mine group located in the NE¼ & center of sec. 34, T4S, R18W (protracted), on federal land. Owned and operated at times, or in part, by the Big Eye Mining Co., Big Eye Mining & Milling Co., Owned and operated by Ketcherside, Grover, Crowder & Green(1920). Owned and operated by Mr. Hudson (1951).

Mineralization is spotty gold and silver values, with minor, largely oxidized base metals in narrow, lenticular, shallow ore shoots of brecciated quartz with stringers of crystalline and manganiferous calcite, in a brecciated fault zone cutting steeply-dipping, kaolinized and chloritized Cretaceous andesite flows, intruded by a rhyolite porphyry dike and apparently faulted against badly shattered Mesozoic quartzite. A relatively small outcrop of intrusive Laramide syenite lies along the strike of the zone and probably underlies the volcanics in a much wider area.

Workings include a tunnel, shaft and open cut operations. This group was worked sporadically from about 1910 through 1951, producing a total of some 2,370 tons of ore averaging about 0.9 oz. Au/T, 8 oz. Ag/T and minor Cu & Pb.

Mineral List

Mineral list contains entries from the region specified including sub-localities

8 entries listed. 3 valid minerals.

Localities in this Region


The above list contains all mineral locality references listed on 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 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.


Wilson, E.D. (1933) Geology and Mineral Deposits of Southern Yuma County, Arizona. Arizona Bureau of Mines Bulletin 134: 102-104.

Wilson, E.D., Cunningham, J.B., and Butler, G.M. (1934), Arizona Lode Gold Mines and Gold Mining (revised 1967), Arizona Bureau of Mines Bull. 137: 148-149.

Keith, Stanton B. (1978), State of Arizona Bureau of Geology and Mineral Technology, Geological Survey Branch Bull. 192, Index of Mining Properties in Yuma County, Arizona: 117 (Table 4).

Arizona Bureau of Mines file data.

MRDS database Dep. ID file #10210587, MAS ID #0040270089.

Mineral and/or Locality is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © and the Hudson Institute of Mineralogy 1993-2017, except where stated. relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: May 27, 2017 18:40:35 Page generated: January 11, 2015 13:37:36
Go to top of page