On the Hudson River along upstate New York’s eastern border, within the natural boundaries of river and mountains, lies the rough rectangle of Rensselaer County. It is bisected by the Poesten Kill,* a powerful stream that scours its way from the mountains to the sea level flats of the Hudson River at Troy.
The Poesten Kill splits the county across the middle into two pieces of roughly equal size, north and south. From its source at about 1,600 feet in the Petersburg Mountains, to the village which bears its name, it’s a smaller steam tumbling over forested rocks and ledges, and forming pools and small waterfalls.
