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Red Jacket shaft, Calumet & Hecla Mine, Calumet, Calumet Township, Houghton Co., Michigan, USA

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Latitude & Longitude (WGS84): 47° 15' 11'' North , 88° 27' 41'' West
Latitude & Longitude (decimal): 47.2530555556, -88.4613888889

The Red Jacket shaft was begun in 1889 by Calumet & Hecla as a means of access to the lowest levels of the mine on the north end of the district. The shaft itself is located just northwest of the village of Calumet. No mine piles are present, but by searching around the cement cap one can find copper and rarely powellite.

Mineral List

Regional Geology

Stenian1000 - 1200 MaPortage Lake Volcanics

Major:: {basalt},Minor:: {andesite},Incidental:: {rhyolite, mudstone}

Portage Lake Volcanics - Lava flows, mostly basalt, andesite and felsite flows and subordinate interflow sedimentary rocks.

This unit is the same as unit Yp on paper map of Sims (1992). Description is taken from that unit description.

Mesoproterozoic1000 - 1600 MaMesoproterozoic volcanic: mafic rocks

Volcanic: mafic rocks

Mesoproterozoic1000 - 1600 MaMesoproterozoic mixed volcanic, volcaniclastic and sedimentary rocks

Mixed volcanic, volcaniclastic and sedimentary rocks

This designation includes Precambrian iron-formation-bearing sedimentary and volcanic sequences, as well as mixed sedimentary and volcanic or volcaniclastic sequences.

References for regional geology:

Data provided by

Garrity, C.P., and Soller, D.R.,. Database of the Geologic Map of North America: adapted from the map by J.C. Reed, Jr. and others (2005). U.S. Geological Survey Data Series 424 .

USGS compilers. State geologic map data. State Maps.

Geological Survey of Canada. Generalized geological map of the world and linked databases. doi:10.4095/195142. Open File 2915d.

7 valid minerals.

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.


Rocks & Minerals: 58:109.

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