Great Lakes passenger steamers the lakes grew in size and number, and additional decks were built on the superstructure to allow more capacity. This inexpensive method of adding capacity was adapted from river steamboats and successfully applied to lake-going craft. The Erie Canal opened in 1825, allowing settlers from New England and New York to reach Michigan by water through Albany and Buffalo. This route opening and the incorporation of Chicago in 1837, increased Great Lakes steamboat traffic from Detroit through the straits of Mackinaw to Chicago. The screw propeller was introduced to the Great Lakes by "Vandalia" in 1842 and allowed the building
Eastern Great Lakes lowland forests Eastern Great Lakes lowland forests The Eastern Great Lakes lowland forests is a temperate broadleaf and mixed forest ecoregion of North America, mostly in eastern Canada. This area includes much of northern New York state (save for the Adirondacks), western Vermont, the Saint Lawrence Lowlands in southern Quebec and most of southern Ontario between Lake Ontario and Georgian Bay on Lake Huron. The region includes the Frontenac Axis, the Niagara Escarpment up to Manitoulin Island on Lake Huron, and Lake Simcoe. Meanwhile, the forests south of Lake Ontario are classified as the Southern Great Lakes forests ecoregion and in Canada