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|Location is approximate, based on center of defined region.|
|Latitude & Longitude (WGS84):||44° 55' 59'' North , 91° 19' 59'' West (est.)|
Chippewa County is underlain mostly by Cambrian sandstones. Complex Precambrian rocks, including gneiss, amphibolites and granites are exposed along the Chippewa River and its tributaries. These rocks show graphically the effects of the Penokean Orogeny which occurred about 1.80 billion years ago. A few Keweenawan (1.1 billion year old) intrusions cut these rocks, as are well exposed at Wissota Dam near Chippewa Falls. Flambeau Ridge, on the northern edge of the County, is a folded outlier of Proterozoic quartzite and meta-conglomerate. The northern part of the County is covered by young Wisconsinan drift of the Chippewa Moraine. A major segment of Wisconsin's Ice Age Trial passes through the County, and includes an excellent visitor center devoted to Wisconsin's glacial heritage. The southern part of the county was not glaciated as recently, hence Cambrian bedrock crops out more frequently. Glacial drift in the County can provide some interesting samples to the diligent collector, including "float" copper, banded iron formation and "Lake Superior" agates.
Commodity ListThis is a list of exploitable or exploited mineral commodities recorded from this region.
Mineral ListMineral list contains entries from the region specified including sub-localities
11 valid minerals.
Rock Types Recorded
Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!
Rock list contains entries from the region specified including sub-localities
Select Rock List TypeAlphabetical List Tree Diagram
Entries shown in red are rocks recorded for this region.
Localities in this Region
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
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Myers, P.E. , M. Cummings & S. Wurdinger, (1980) Precambrian Geology of the Chippewa Valley, Wisconsin: field guide: Guidebook 26th annual meeting, Institute on Lake Superior Geology, 123 p.
Laberge, G. L. & P. Myers (1984) Two early Proterozoic successions in central Wisconsin and their tectonic significance: Geological Society of America Bulletin: 95: 246-253.
Dott, R. H. & J. W. Attig (2004) Roadside Geology of Wisconsin: Mountain Press Publishing Company, 346 p.