Thousand Islands National Park Thousand Islands National Park Thousand Islands National Park (established 1904), formerly known as the St. Lawrence Islands National Park, 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 21 islands plus many smaller islets, 2 mainland properties and a visitor centre at Mallorytown, Ontario on the mainland. It is one of Canada's smallest national parks with a
Thousand Islands Railway Thousand Islands Railway The Thousand Islands Railway (originally Gananoque & Rideau Railway) was an long railway running from the town of Gananoque north to the Grand Trunk Railway (now CN) Toronto-Montreal mainline, just south of present-day Cheeseborough. The service ran for 111 years between 1884 and 1995. The rails were removed in October 1997. The railway was originally incorporated as Gananoque & Rideau Railway on 15 February 1871, but construction did not begin until 1883 due to lack of money. The town provided tax breaks and $10,000 in debenture financing to Rathbun's Bay of Quinte Railway and Navigation Company to