Mine detail: Gratiot Lake Project

Previously called ''

<< Back to the map

Location

Lat / long:

47.35806, -88.18643

Resource(M)

Primary:	Copper
Ore:	Chalcocite
Orebody form:	IRREGULAR

Production

Operation type:	Underground
Deposit type:	Fissure Copper Veins
Production size:	Unknown
Development status:	Prospect
First production started:	1853

Geology

Host rock:	Portage Lake Volcanics
Host type:	Basalt
Structure:	Syncline

References

MRDS	LW00107
DEP	10310107
Reference	JOHNSON, A.M. AND GROTH, E.H., 1998, INVENTORY OF UNDERGROUND MINES, KEWEENAW COUNTY, P. 131-32, SITE ID # 420035, MICHIGAN DEPARTMENT OF NATURAL RESOURCES.
Reporter	Anderson, Arlene (M. Gere)