Midwest Federation of Mineralogical & Geological Societies - covering the midwestern states of Illinois, Indiana, Iowa, Michigan, Minnesota, Missouri, Ohio, and Wisconsin, the western parts of North & South Dakota, and Nebraska, and parts of Arkansas. The federation has a monthly newsletter, and maintains a c - http://www.amfed.org/mwf/
Rocky Mountain Federation of Mineralogical Societies - Regional federation of amateur enthusiasts in gems, minerals, fossils and the lapidary arts covering Arizona, Arkansas, Colorado, Kansas, Nebraska, New Mexico, North Dakota, Oklahoma, South Dakota, Texas, Utah and Wyoming. - http://www.rmfms.org/
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