Upstate New York - Geography

Geography

The headwaters of the Delaware, Susquehanna, Hudson, and Allegheny rivers are located in the region. The region is characterized by the major mountain ranges, large lakes, and extensive forests.

The Allegheny Plateau extends into west and central New York from the south. The Catskill Mountains lie in the southeastern part of the state, closer to New York City. The Catskills and the Allegheny Plateau are both part of the Appalachian Mountains. The northernmost part of the state contains the Adirondack Mountains, which are sometimes considered part of the Appalachians but are geologically separate, a southern extension of the Canadian Shield.

In the more mountainous eastern part of Upstate New York, the valleys of the Hudson River and the Mohawk River were historically important travel corridors and remain so today. Western New York in the vicinity of Buffalo is very flat, as it was once the bottom of a glacial lake. The only "hills" in Niagara County are the Niagara Escarpment, which formed the Falls.

Upstate has a long shared border with Canadian province of Ontario divided by water; including the Lake Erie, Niagara River, Lake Ontario and the St. Lawrence River. It shares a land border with the province of Quebec in the northernmost part of the state.

The sizes of upstate counties and towns are generally larger in area and smaller in population, compared with the downstate region, although there are exceptions. The state's smallest county in population (Hamilton County) and largest county in area (St. Lawrence County on the state's northern border) are both in Upstate New York, while the largest in population (Kings County) and smallest in area (New York County) are both part of New York City.

Upstate New York is well known for its cold and snowy winters, particularly in comparison to the more temperate climate of downstate New York. The snowy reputation is especially true for the cities of Buffalo, Rochester, Oswego and Syracuse, and is largely due to lake-effect snow from Lake Ontario and Lake Erie. The villages of Old Forge and Saranac Lake, both in the Adirondacks, often vie on winter nights with places like International Falls, Minnesota and Fargo, North Dakota for the coldest spot in the nation.

Many of the features of the upstate landscape, such as the Finger Lakes and the drumlins that dot the region, are the result of glaciers during the Ice Age.