Coker No. 2 Mine, Livingston, Upper Mississippi Valley District, Iowa Co., Wisconsin, USA
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|Latitude & Longitude (WGS84):||42° 52' 35'' North , 90° 23' 46'' West|
|Latitude & Longitude (decimal):||42.8766378985, -90.3961980712|
This refers to a closely space group of zinc-lead mines (Sunrise, Sunset, Dale-Rundell, Rundell and Yewdall Mines) worked first in the late 1800's and, after changing hands a number of times, closed in 1926. Ore was mostly in pitch and flat structures in the Ordovician carbonate rocks of the Decorah and Galena Formations.
7 valid minerals.
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Heyl, A., A. F. Agnew, E. J. Lyons & C.H. Behre Jr. (1959), The geology of Upper Mississippi Valley Zinc-Lead District: U.S. Geological Survey Professional Paper 309: 261-262.