Grand Isle

Grand Isle, county, northwestern Vermont, U.S. It is bordered to the north by Quebec, Canada, and to the west by New York state. It consists of a peninsula extending southward into Lake Champlain from Quebec and an archipelago of three larger islands (Isle La Motte and North and South Hero islands) and several smaller islands. The county is linked by bridge to mainland Vermont and to New York. The low-lying terrain, which once supported an...