Back গান উপত্যকা, দক্ষিণ ড্যাকোটা Bengali/Bangla Gann Valley, South Dakota English Gann Valley Spanish گان ولی، داکوتای جنوبی Persian Gann Valley French گن ولي (نسايي داکؤتا) GLK गॅन्न वैली, दक्षिण डकोटा Hindi Gann Valley Hungarian Gann Valley Italian Gann Valley, South Dakota Serbo-Croatian
Gann Valley is a census-designated place (CDP) in the U.S. state of South Dakota. It is the county seat of Buffalo County.
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