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Ancient Earthworks Society | Badger Lapidary and Geological Society | Black Hawk Gem and Mineral Club (Rock Island Illinois) | Cedar Valley Rock Club, Cedar Rapids, Iowa | Chicago Rocks & Minerals Society | Chippewa Valley Gem and Mineral Society, Eau Claire, WI | Des Plaines Valley Geological Society (Des Plaines, IL) | Earth Science Club of Northern Illinois | Elgin Rock and Mineral Society | Four Lakes Metal Detecting Club | Geological Society of Iowa | Geological Society of Minnesota | Greenbush Prospectors | Heart of Wisconsin Gem & Mineral Society | Mid-america Geographic Foundation, Fond du lac, WI | Neville Public Museum (which has a rock club) | Northwoods Geology Club, Florence, WI | Oshkosh Earth Science Club, Oshkosh, WI | Racine Geological Society | Rock Ladies Educational Business | Rock River Valley Geological Club | South Suburban Earth Science Club, Park Forest, IL | St Croix Rockhounds, Stillwater, MN | Wisconsin Geological Society (Milwaukee) | Wisconsin Prospectors | Wisconsin Speleological Society |
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