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
Thousand Islands (Cocoa Beach) (Sw.) Willd.), blolly ("Guapira discolor" (Spreng.) Little), black ironwood ("Krugiodendron ferreum"(Vahl) Urb.), twinberry ("Myrcianthes fragrans"(Sw.) McVaugh), white indigo-berry ("Randia aculeata" L.), saffron plumb ("Sideroxylon celastrinum"(Kunth) T. D. Penn.), and wild lime ("Zanthoxylum fagara" (L.) Sarg.). Many of these plants are not found farther north than Brevard County. The state of Florida and Cocoa Beach purchased the islands north of Minutemen Causeway in 1988. Acquisition of the remaining south islands was completed by 2007. These islands are managed as the Thousand Islands Conservation Area by Brevard County Environmentally Endangered Lands Program. Efforts to acquire the remaining privately held islands began in