Answer:
Every river is part of a larger system—a watershed, which is the land drained by a river and its tributaries. Rivers are large natural streams of water flowing in channels and emptying into larger bodies of water.A tributary is a smaller stream or river that joins a larger or main river.
That would have to be the northern-most point in the state.
The northernmost part of New York State is a line that runs
about 68 miles along the 45th parallel of north latitude, roughly
from Rooseveltown to Rouses Point. Anywhere along that line
sees the sun at the same altitude at local solar noon.