Thousand Islands – Frontenac Arch is one of four ecoregions of the Mixedwood Plains. The Thousand Islands in the Saint Lawrence River have a distinctive flora and fauna and are a part of the biological corridor. The bedrock is mostly gneiss, granite and marble, more than a billion years old. The Frontenac terrain is the youngest of the Ontario portions of the arch, dated at 1.2 billion years old. These rocks were once part of a large mountain chain of the ancient supercontinent of Rodinia. There is also a meteor crater near Holleford, where the shield meets the limestone plains of southeastern Ontario. The area
Thousand Islands (Cocoa Beach) Thousand Islands (Cocoa Beach) The Thousand Islands are a group of natural, modified, and spoil islands in the Banana River Lagoon, Cocoa Beach, in Brevard County, Florida. From the late 1950s to the early 1970s the islands were reshaped by development and efforts to control mosquitoes as the population of Brevard grew during the initial period of the space program at Cape Canaveral and Kennedy Space Center. The State of Florida bought the Thousand Islands in 1988. It leased them back to the City of Cocoa Beach in 1991, providing that the islands be used for recreation and conservational efforts.