Mine detail: Thomforde Pits

Previously called ''

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Location

Lat / long:

44.39417, -92.58019

Resource(N)

Primary:	Clay
Ore:	Clay
Orebody form:	IRREGULAR, LENSES, PODS
Discovery year:	1875

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer

Geology

Host rock:	Glacial Drift, Loess, And Outwash Sands;Windrow Formation, Ferruginous And Clastic Members;Oneota Formation, Dolomite Sand;Jordan Sandstone
Host type:	Clastic Sedimentary Rock
Structure:	Cretaceous Sediments Flank North Trending, Gently Dipping Red Wing-Rochester Anticline

References

MRDS	W018686
DEP	10072951
Reference	{Deposit:: AUSTIN, G.S., 1963, GEOLOGY OF CLAY DEPOSITS; RED WING AREA, GOODHUE AND WABASHA COUNTIES, MN, MINNESOTA GEOLOGICAL SURVEY R.I. 2.}{Deposit:: GROUT, F.F., AND SOPER, E.K., 1919, CLAYS AND SHALES OF MINNESOTA; U.S. GEOLOGICAL SURVEY BULL.678.}{Deposit:: 1919 COMPILA GROUT, F.F., AND SOPER, E.K., BULLETIN 67}{Production:: SEE AUSTIN, 1963, M.G.S.R.I. 2 FOR SEDIMENT SIZING}
Reporter	Sutphin, David M., Mason Jr., G.T.