Complex sentence: The Chemung County Historical Society is headquartered in the historic Chemung Canal Bank Building in Elmira, New York, and is dedicated to the collection, preservation, and presentation of the cultural history of the Chemung River Valley region.
Split into simpler sentences: The Chemung County Historical Society is headquartered in the historic Chemung Canal Bank Building in Elmira, New York. It is dedicated to the collection, preservation, and presentation of the cultural history of the Chemung River Valley region.