The Hudson Highlands are mountains on both sides of the Hudson River in New York state lying primarily in Putnam County on its east bank and Orange County on its west. They continue somewhat to the south in Westchester County and Rockland County, respectively. The highlands are a subrange of the Appalachian Mountains.
Wind Gate, the northern entrance to the Hudson Highlands, as seen from Newburgh. Breakneck Ridge is to the left, Storm King Mountain to the right with Bannerman's Island in the middle of the river and West Point visible in the distance
Highlands of the Hudson Forest Reservation 1909
Opuntia humifusa (Eastern prickly pear cactus) in bloom atop Sugarloaf Hill in the Hudson Highlands
View from Hudson River with Bear Mountain Bridge in foreground
The Hudson River is a 315-mile (507 km) river that flows from north to south primarily through eastern New York, United States. It originates in the Adirondack Mountains of upstate New York at Henderson Lake in the town of Newcomb, and flows southward through the Hudson Valley to the New York Harbor between New York City and Jersey City, eventually draining into the Atlantic Ocean at Upper New York Bay. The river serves as a physical boundary between the states of New Jersey and New York at its southern end. Farther north, it marks local boundaries between several New York counties. The lower half of the river is a tidal estuary, deeper than the body of water into which it flows, occupying the Hudson Fjord, an inlet that formed during the most recent period of North American glaciation, estimated at 26,000 to 13,300 years ago. Even as far north as the city of Troy, the flow of the river changes direction with the tides.
Bear Mountain Bridge across the Hudson River as seen from Bear Mountain in New York state
The Hudson River flowing out of Henderson Lake in Tahawus
The river from Poughkeepsie, looking north.
The river between Hudson Waterfront in New Jersey (left) and Manhattan (right)