Geography of New York (state) Geography of New York (state) The geography of New York state varies widely. Most of New York is dominated by farms, forests, rivers, mountains, and lakes. New York's Adirondack Park is larger than any U.S. National Park in the contiguous United States. Niagara Falls, on the Niagara River as it flows from Lake Erie to Lake Ontario, is a popular attraction. The Hudson River begins near Lake Tear of the Clouds and flows south through the eastern part of the state without draining lakes George or Champlain. Lake George empties at its north end into Lake Champlain, whose northern end
New York–Pennsylvania border New York–Pennsylvania border The New York–Pennsylvania border is the state line between the U.S. states of New York and Pennsylvania. It has three sections: The survey of the 42nd parallel north was carried out in 1785–86 and accepted by the two states in 1787. The surveying technique that was used at the time was not especially accurate, and as such, this boundary wanders a bit on both sides of the true parallel. The 82nd mile stone was used as the starting point of the Preemption Line defined in the Treaty of Hartford in 1786 to separate Massachusetts and New York