Mine detail: Ransom Mine

Previously called ''

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Location

Lat / long:

48.09167, -88.58338

Resource(M)

Primary:	Copper
Ore:	Copper
Orebody form:	FISSURE

Production

Operation type:	Surface
Production size:	Small
Development status:	Past Producer
Production years:	PRIOR TO 1850

Geology

Host rock:	Portage Lake Volcanics
Host type:	Basalt
Structure:	Fissure in amygdaloidal basalt

References

MRDS	W060084
DEP	10082646
Reference	{Deposit:: LANE, A.C., 1898, UPPER PENINSULA, ISLE ROYALE: GEOLOGICAL SURVEY OF MICHIGAN, V.6.,PT. 1, 281 PP.}{Deposit:: HUBER, N.K., 1973, GEOLOGIC MAP OF ISLE ROYALE NATIONAL PARK, KEWEENAW COUNTY, MICHIGAN: USGS MISC. GEOL. INVEST., MAP I-796, SCALE 1:62500}
Reporter	Sutphin, D.M., Mason Jr., G.T., Nicholson, Suzanne