Thousand Islands level year-round, and support at least two living trees. The Thousand Islands archipelago is located at the outlet of Lake Ontario at the head of the Saint Lawrence River. The region is bisected by the Canada–United States border and covers portions of Jefferson and St. Lawrence counties in the U.S. state of New York, in addition to parts of the United Counties of Leeds and Grenville and Frontenac County in the Canadian province of Ontario. Geologically, most of the islands are located where a branch of the Canadian Shield runs south across the river to join with the Adirondacks. The
Thousand Islands (Indonesia) system which also contains the islands of Biawak, Kongsi, Tikus, Burung, and several others. The Kelurahan (administrative Village) of Pulau Tidung (postal code 14520) consists of seven islands. Officially it is listed as having six islands, in which Karang Beras Kecil Island is not included. The Kecamatan (Subdistrict) of Kepulauan Seribu Utara ("North Thousand Islands") is located further north from Jakarta. The sea water is relatively cleaner than the Subdistrict of South Thousand Islands because of its location further away from the Bay of Jakarta. The cleaner water is able to sustain more varieties of marine life. On January 1,