Thousand Islands – Frontenac Arch Thousand Islands – Frontenac Arch The Thousand Islands – Frontenac Arch region or the Frontenac Axis is an exposed strip of Precambrian rock in Canada and the United States that links the Canadian Shield from Algonquin Park with the Adirondack Mountain region in New York, an extension of the Laurentian mountains of Québec. The Algonquin to Adirondacks region, which includes the Frontenac Axis or Arch, is a critical linkage for biodiversity and resilience, and one with important conservation potential. The axis separates the St. Lawrence Lowlands and the Great Lakes Lowlands. It has many distinctive plant and animal species. It
Ten Thousand Islands Islands, south of Everglades City, is in Everglades National Park. The 99-mile long Wilderness Waterway begins at Everglades City and ends at Flamingo at the southern tip of the Florida peninsula. Administrative control of the islands is split between Collier County and Monroe County. The Ten Thousand Islands were used and occupied by Native Americans for thousands of years. Evidence of former living sites can be found under as much as four feet of water. A number of shell rings and other shell complexes have been identified in or adjacent to the Ten Thousand Islands. The Horr's Island archaeological site