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Stanstead is a town in the Memphrémagog Regional County Municipality in the Estrie region of Quebec, located on the Canada–United States border across from Derby Line, Vermont.
The Town of Stanstead was created in 1995 by the merger of the former villages of Stanstead Plain and Beebe (formerly Beebe Plain) and the Town of Rock Island. It is not to be confused with the township of Stanstead, which is nearby although not directly adjacent (the municipality of Ogden lies in between). Not only is Stanstead home to the Haskell Free Library and Opera House—the only heritage building deliberately constructed straddling the border between both countries—it also features Canusa Street (Rue Canusa), one of a number of streets in the world where the country border corresponds to the middle line marker, effectively making across-the-street neighbors residents of two countries.