Mine Index 10266590 Winter (Wilmer), Appleton Mine,Dinsdale Mine

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	S-T-R	10(SESE)-28N-1E
	County:	Jo Daviess
	Quadrangle:	Galena
	District:	Upper Mississippi Valley
	Subdistrict:

Mine Index Number: 10266590

ISGS ID:	9178	MSHA ID:
MAS ID:	170850033	MRDS ID:	W800119
Company Name:	Winter (Wilmer)
Mine/Site Name:	Appleton Mine, Dinsdale Mine
Active/Abandoned:	Abandoned
Start Date:	1908	End Date:	1909
Commodity Type:	Metallic
Commodity:	Lead, Zinc
Minerals Present:	Dolomite, Calcite, Quartz, Sphalerite, Pyrite
Type of Mine:	Underground
District:	Upper Mississippi Valley	Subdistrict:
County:	Jo Daviess
Section/Township/Range:	10(SESE)-28N-1E
Latitude,Longitude:	42.43421,-90.38231
Unit(s) Mined:	Galena Group, Platteville Group
Feature(s) Mined:
MRDS Link:	https://mrdata.usgs.gov/mrds/show-mrds.php?dep id=10266590
Mindat link:

Discussion

THE ORE WAS DISSEMINATED IN THE GRAY BEDS OF THE DECORAH FM. THE ORE BODY HAD A NORTHERLY TREND AND THE BEDS ARE SAID TO DIP TO THE EAST.

Mine Data

Production statistics

Year	1909
Period	1908-09
Material	ZN ORE
Accuracy	Estimate
Description	Cp_Grade: ^About 4 Percent Zn.
Importance	Item	Commodity	Group	Amount recovered	Grade	Recovery percentage
Major	Ore	Zinc	Zinc		4wt-pct

PERHAPS AS MUCH A 20,000 TONS OF ZINC WERE MINED.

Workings at the site

Type of workings	Underground
Name of workings	SHAFT
Width	33.53M

THE PROPERTY WAS NOT PROSPECTED BEYOND 1 OR 2 HOLES BEFORE MINING COMMENCED. A 100-TON JIG WAS ERECTED AND OPERATED FOR SOME TIME. ; ECON.COM: THE MINE WAS NOT PROFITABLE BECAUSE OF THE LOW 4 PERCENT ZINC GRADE AT THE MILL HEAD AND THE LACK OF SUFFICIENT DEVELOPEMNT WORK BY PROSPECTING. MINING WAS EXPENSIVE AND WASTEFUL BECUASE OF THE INEXPERIENCE OF THE OPERATORS.

References

BRADBURY,J.C., 1959, ILL.ST.GEOL. SURV. R.I. 210, P.35-36

HEYL, A.V., AGNEW, A.F., LYONS, E.J., AND BEHRE, C.H., JR., 1959, THE GEOLOGY OF THE UPPER MISSISSIPPI VALLEY ZINC-LEAD DISTRICT: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 309, 310 P.

WILLMAN, H.B., REYNOLDS, R.R., AND HERBERT, PAUL, JR., 1946, GEOLOGICAL ASPECTS OF PROSPECTING AND AREAS FOR PROSPECTING IN THE ZINC-LEAD DISTRICT OF NORTHWESTERN ILLINOIS: ILLINOIS GEOLOGICAL SURVEY REPORT OF INVESTIGATIONS, NO. 116, 48 P.

HEYL AND OTHERS, 1959, P. 183.

External Links

Mineral Resources Data System (MRDS) USGS Link
https://mrdata.usgs.gov/mrds/show-mrds.php?dep_id=10266590
Also referenced as 10086248