Thousand Islands Thousand Islands The Thousand Islands constitute an archipelago of 1,864 islands that straddles the Canada–US border in the Saint Lawrence River as it emerges from the northeast corner of Lake Ontario. They stretch for about downstream from Kingston, Ontario. The Canadian islands are in the province of Ontario and the U.S. islands in the state of New York. The islands range in size from over to smaller islands occupied by a single residence, or uninhabited outcroppings of rocks. To count as one of the Thousand Islands, emergent land within the river channel must have at least of land above water
Ten Thousand Islands Ten Thousand Islands The Ten Thousand Islands are a chain of islands and mangrove islets off the coast of southwest Florida, between Cape Romano (at the southern end of Marco Island) and the mouth of Lostman's River. Some of the islands are high spots on a submergent coastline. Others were produced by mangroves growing on oyster bars. Despite the name, the islets in the chain only number in the hundreds. The northern part of the Ten Thousand Islands, between Cape Romano and Everglades City, is in the Ten Thousand Islands National Wildlife Refuge. The southern part of the Ten Thousands