Kingston Mine, Copper City, Keweenaw Co., Michigan, USA
|Latitude & Longitude (WGS84):||47° 17' 28'' North , 88° 23' 5'' West|
|Latitude & Longitude (decimal):||47.2911111111, -88.3847222222|
|Other regions containing this locality:||Keweenaw Peninsula, Michigan, USA|
Commodities (Major) - Copper
Development Status: Past Producer
An underground copper mine located between Allouez and Ahmeek, MI. The Kingston Mine was opened by Calumet & Hecla on the Kearsarge Conglomerate in 1964, making it the last mine shaft opened by C&H. The mine consisted of one incline shaft that was worked to the 12th level. The mine closed in 1968 due to a labor strike. Specimens from Kingston include copper, silver, cuprite, and epidote.
8 valid minerals.
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 Macrostrat.org
1000 - 1200 Ma
|Portage Lake Volcanics|
Age: Stenian (1000 - 1200 Ma)
Stratigraphic Name: Portage Lake Volcanics
Comments: This unit is the same as unit Yp on paper map of Sims (1992). Description is taken from that unit description.
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. 
Kilpela, T, 1995, The Hard Rock Mining Era in the Copper Country. 89 pp.
WEEGE, R.J., AND J.P. POLLOCK. EXPLORATION METHODS IN THE COPPER COUNTRY, KEWEENAW PENINSULA, MICHIGAN. CHAPTER IN PAPERS PRESENTED AT THE AIME PACIFIC SOUTHWEST MINERAL INDUSTRY CONFERENCE.