SUPPORT US. If mindat.org is important to you, click here to donate to our Fall 2019 fundraiser!
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:
Keyword(s):
 
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

Tremont Mine (Devon), Ontonagon Co., Michigan, USA

This page is currently not sponsored. Click here to sponsor this page.
 
 
Commodities (Major) - Copper
Deposit Type: Vein
Development Status: Past Producer
Deposit Model: 96: Native Cu
Host Rock Unit: Portage Lake Volcanics
Host Rock: Basalt

In 1854 the Forest Mining Company set off land to form the Tremont and Devon Mining Companies on land that was previously explored by Forest. Exploration work was conducted on both properties in the 1850’s and early 1860’s. It was discovered that the Minesota Conglomerate crossed the property and shortly thereafter three shafts and many adits were driven. In 1868 it was reported that small masses of copper along with barrel and stamp ore were being recovered. In 1868 the mines produced around one ton of copper, mostly from the Forest Amygdaloid which also crossed the property. Most of the production was coming from the Devon shafts; the Tremont was not explored as heavily or developed as much. In 1908, the companies merged to form the Tremont Devon Mining Company. Exploration continued, but mining ceased after this time.

Mineral List



No entries listed.

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

JOHNSON, A.M. AND GROTH, E.H., 1998, INVENTORY OF UNDERGROUND MINES, ONTONAGON COUNTY, P. 237-239, SITE ID # 660085 & SITE ID #660030, MICHIGAN DEPARTMENT OF NATURAL RESOURCES.

Hamka, T., 2011, The Copper Mines of Ontonagon County, Michigan. Copperlady Press. 154 pp.

DeGood, L., 2011, Michigan Copper Mining Stocks and Bonds. 401 pp.

 
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2019, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: December 7, 2019 01:24:26 Page generated: January 20, 2015 19:29:40
Go to top of page