Minnesota · St. Louis County
Past Producer

Armstrong Bay Mine

St. Louis County, Minnesota, United States
Iron
⌖ Show on mapUSGS source ↗
Commodities
PrimaryIron
Commodity typeM
Deposit
Model188: Algoma Fe
Deposit sizeS
Orebody formIRREGULAR
Materials
Ore mineralsHematite, Magnetite
GangueChert
Geology
Host rockIron Formation · Soudan Iron Formation
Economic & production
Development statusPast Producer
First production1923
Identification
Deposit ID10072532
MRDS IDW018138
RegionNA
Data scoreC
Coordinates47.86194, -92.15797
References
SIMS, P.K.,1972. BANDED IRON-FORMATIONS IN VERMILION DISTRICT; IN; SIMS,P.K. AND MOREY,G.B.,EDS., GEOLOGYOF MINNESOTA; A CENTENNIAL VOLUME, MINN.GEOL.SURV., P.79-81.MOREY, G.B.,ET.AL.,1970. STRATIGRAPHY OF THE LOWER PRECAMBRIAN ROCKS IN THE VERMILION DISTRICT, NORTHEASTERN MINNESOTA, MINN.GEOL.SURV. R.I. 14, 33P.TRETHEWEY, W.D., 1974, UNIV. MINN. BULL., MINING DIRECTORY ISSUE