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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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