Thousand Islands National Park (established 1904) is located on the 1000 Islands Parkway in the Thousand Islands Region of the Saint Lawrence River. The islands are actually the worn-down tops of ancient mountains. This region, the Frontenac Axis, connects the Canadian Shield from Algonquin Park in Ontario to the Adirondack Mountains in New York. The park consists of more than 21 islands plus many smaller islets, 2 mainland properties and a visitor centre at Mallorytown, Ontario on the mainland. Much of the park is only accessible by boat.
International Bridge: (from backside postcard)
The Thousand Islands Bridge is an international bridge system over the Saint Lawrence River connecting northern New York in the US with southeastern Ontario in Canada. Constructed in 1937, with additions in 1959, the bridges span the US-Canada border in the middle of the 1000 islands region, from which it derives its name.