Wallkill River
| Wallkill River (Twischsawkin) | |
 Islands in the river near Walden, NY
|
|
| Country | United States |
|---|---|
| States | New York, New Jersey |
| Counties | Ulster, NY, Orange, NY, Sussex, NJ |
| Tributaries | |
| - left | Shawangunk Kill |
| - right | Papakating Creek |
| Cities | New Paltz, NY, Walden, NY, Montgomery, NY, Sparta, NJ |
| Source | Lake Mohawk, New Jersey |
| - location | Sparta, Sussex County, NJ |
| - elevation | 720 ft (219 m) |
| - coordinates | 41°01′58″N 74°38′38″W / 41.03278°N 74.64389°W |
| Mouth | Rondout Creek |
| - location | Rifton, Ulster County, NY |
| - elevation | 0 ft (0 m) |
| - coordinates | 41°51′13″N 74°02′55″W / 41.85361°N 74.04861°WCoordinates: 41°51′13″N 74°02′55″W / 41.85361°N 74.04861°W |
| Length | 88 mi (142 km) |
| Basin | 785 sq mi (2,033 km2) |
| Discharge | for Gardiner, NY |
| - average | 1,365 cu ft/s (39 m3/s) |
 The combined watersheds of the Wallkill and Rondout Creek
|
|
The Wallkill River, a tributary of the Hudson, drains Lake Mohawk in Sparta, New Jersey, flowing from there generally northeasterly 88.3 miles (142.1 km) to Rondout Creek in New York, just downstream of Sturgeon Pool, near Rosendale, with the combined flows reaching the Hudson at Kingston.
The river is unusual because it flows north between two major south-flowing rivers, the Hudson and the Delaware River. It also has the unusual distinction of being a river that drains into a creek, due to being impounded shortly before the Rondout confluence into a small body of water called Sturgeon Pool near Rifton, and what reaches the Rondout from there is the lesser flow.
The broad valley of the Wallkill River nestles between the main Appalachian Mountains and the New York-New Jersey Highlands, supporting much local agriculture. It is a part of the Great Appalachian Valley. In the beginning of its course it drains the eastern section of Sussex County, New Jersey, then flows through the Wallkill River National Wildlife Refuge at the New Jersey/New York state line. Most of the New Jersey portion is navigable by canoe. Then it is heavily diverted as it flows through the rich Black Dirt Region of Warwick. Until drainage projects were built here, this region was known as the Drowned Lands. After lending its name to the town of Wallkill, in northern Orange County, it begins to regain its volume as it passes by Orange County Airport, Montgomery and through Walden, where dams have been built in the past to provide power for local industry. The largest, in Walden, still is used by New York State Electric and Gas today.
...
Wikipedia