LIVE REPORT! Denver Mineral Shows 2019 - last updated 21 minutes ago. Click here to watch.
Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsBooks & Magazines
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch 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
Mining CompaniesStatisticsUsersMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryMineral Photography

Stargo Mine (Capote Mine; Stargo Extension Mine; Stargo Silver Belt; Silverlead Mine; Silver King Mine; Silver Mohawk Mine; Nevada Mine; Craig Mine), Stargo, Copper Mountain District (Clifton-Morenci District), Shannon Mts, Greenlee Co., Arizona, USA

This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84): 33° 3' 0'' North , 109° 21' 33'' West
Latitude & Longitude (decimal): 33.05, -109.359166667
Other regions containing this locality:Sonoran Desert, North America

A former surface and underground Ag-Au-Cu-Pb mine located on 26 patented claims totalling 520 acres in the E½SE¼ sec. 21 and the SW¼ sec. 22, T4S, R29E, on private land. Claims lie under the present town of Stargo. Central point in town of Stargo was used for UTM and geodetic location coordinates. Discovered by Ignacio Campbell in 1890. Produced 1907-1935. Former operators included the Stargo Silver Belt Mining Co.; the Stargo Syndicate; George W. Schale; Pedro Fuentes; Jose E. Tellez; Ignacio Campbell and Sons; The Stargo Mines Co. (Inc.); and the Detroit Copper Co. Owned and operated by the Phelps Dodge Corp., Morenci Branch.

Mineralization is a normal fissure vein filling with irregular and blanket lateral expansions, hosted in the Longfellow Limestone. The ore zone is 804.65 meters long, 15.24 meters wide and 6.1 meters thick, striking N-S and dipping 40W. Ore control was a N-S-trending fissure vein. Ore concentration was surface leaching and concentration of mineralizing solutions along bedding planes adjacent to the vein. Ore is in water-deposited quartz. Alteration was minor. The above describes the Stargo vein. There are 8 known veins on the Stargo proeprty of which the Stargo vein is the main deposit. The above describes the Stargo vein deposit. Maximum length data describes the surface exposure while the length underground may exceed 1.0 mile. All veins are similar in character and content. The Stargo property fissure system is located next to the Morenci quartz-monzonite porphyry area.

Area structures include a tilted block of limestone resting on basal quartzite and granite. The block is bounded by the Copper Mountain Fault to the NE and Apache Gulch (Stargo Gulch) to the SW. N-S-trending fissures cut by short cross-faults.

Tectonic component is the transition zone between the Basin and Range and Colorado Plateau Provinces and a fault block south of Morenci.

Workings totaled 411.48 meters long and 60.96 meters deep. Workings include hoists with maximum height of 150 feet, 3 working shafts, and a 75 ton capacity cyanide mill. Extensive surface mining occurred on the Stargo vein. Extensive surface mining was also undertaken along the Triangle, Capote, and Craig veins.

Mineral List

2 valid minerals.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on

Serpukhovian - Early Cambrian
323.2 - 541 Ma
Mississippian, Devonian, and Cambrian sedimentary rocks

Age: Paleozoic (323.2 - 541 Ma)

Stratigraphic Name: Tapeats Sandstone; Bright Angel Shale; Muav Limestone; Temple Butte Formation; Redwall Limestone; Bolsa Quartzite; Abrigo Formation; Martin Formation; Escabrosa Limestone

Description: Brown to dark gray sandstone grades upward into green and gray shale, overlain by light to medium gray or tan limestone and dolostone. This unit includes the Tapeats Sandstone, Bright Angel Shale, Muav Limestone, Temple Butte Formation and Redwall Limestone in northern Arizona, and the Bolsa Quartzite, Abrigo Formation, Martin Formation, and Escabrosa Limestone in southern Arizona. These rocks record intermittent sea-level rise and inundation in early Paleozoic time. (330-540 Ma)

Lithology: Major:{sandstone,shale,limestone}, Minor:{dolostone,quartzite}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by, used under Creative Commons Attribution 4.0 License

This page 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.


Lindgren W. (1905) The Copper Deposits of the Clifton-Morenci District, Arizona. USGS Professional Paper 43 (see Square Butte and Apache Gulch).

Willis, C.F. (1920), Mines of Tomorrow No. 10 – The Stargo Mines Co., Inc., Arizona Mining Journal, Aug 1920: IV(3): 34-35.

Weed, W.H. (1925), The Mines Handbook: Vol. XVI: 454-455, Stargo Mines Inc. and Stargo Silver Belt Mining Co.

Bennett (1975) Geology and Origin of the Breccias in the Morenci-Metcalf District, Greenlee County, Arizona, MS thesis, University of Arizona, 153 pp.

Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 148, 372.

U.S. Bureau of Land Management District Maps #842 & 841.

U.S. Bureau of Mines - Arizona Bureau of Geology and Mining Technology file data.

MRDS database Dep. ID #10048131, MRDS ID #M800163; and Dep. ID #10048275, MRDS ID #M800398; and Dep. ID #10048289, MRDS ID #M800418.

Mineral and/or Locality is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © and the Hudson Institute of Mineralogy 1993-2019, except where stated. Most political location boundaries are © OpenStreetMap contributors. relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: September 15, 2019 19:26:02 Page generated: October 6, 2017 21:53:40
Go to top of page