Marlboro Mountains | |
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Illinois Mountain, the second highest ridge of the Marlboro Mountains, seen from Tony Williams Park in Lloyd, New York.
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Highest point | |
Peak | Marlboro Mountain |
Elevation | 1,127 ft (344 m) |
Coordinates | 41°40′43.31″N 74°00′43.6″W / 41.6786972°N 74.012111°WCoordinates: 41°40′43.31″N 74°00′43.6″W / 41.6786972°N 74.012111°W |
Dimensions | |
Length | 25 mi (40 km) north–south |
Geography | |
Country | United States |
State | New York |
Geology | |
Age of rock | Ordovician |
Type of rock | Sedimentary |
The Marlboro Mountains, sometimes Marlborough Mountains, are a group of hogbacked mountains arranged in a 25 mile long ridge extending from Newburgh, New York to just south of Kingston, New York. Considered to be part of the Ridge and Valley Appalachians, the mountains, which reach elevations over 1,100 feet, form an imposing geologic barrier just west of the Hudson River. They subdivide the relatively flat Hudson River Valley (a section of the Great Appalachian Valley) to create the Wallkill Valley further west. Rising abruptly on their eastern flanks, the Marlboro Mountains are known for their sweeping views of the region.
The Marlboro Mountains form a broken ridgeline running from the Ulster–Orange County border in the south to the mouth of Rondout Creek in the north. The southernmost 9 miles (14 km) of the ridge form Marlboro Mountain, the namesake mountain of the range. Just north of the Marlboro Mountain ridge is Bailey's Gap, which separates Marlboro Mountain from the 3 1⁄2-mile (5.6 km) long Illinois Mountain. North of Illinois Mountain there is half mile wide break in the ridgeline before it slowly rises to a series of unnamed hilltops west of West Park, New York. North of this section is Shaupeneak Mountain, which bends to the north-northwest before reaching an area known as The Hell, a gap in the ridge through which a creek flows. North of this gap is Hussey Hill, which stretches to an area west of Port Ewen, New York, marking the northernmost limit of the Marlboro Mountains.
The name “Marlboro” is a variant of the English “Marlborough”. In the case of the mountains, the name comes from the Duke of Marlborough, for whom the town of Marlborough, New York is named.