Fishkill Creek (also Fish Kill, from the Dutch vis kille, for "fish creek") is a tributary of the Hudson River in Dutchess County, New York, United States. At it is the second longest stream in the county, after Wappinger Creek. It rises in the town of Union Vale and flows generally southwest to a small estuary on the Hudson just south of Beacon. Part of its watershed is in Putnam County to the south. Sprout Creek, the county's third-longest creek, is its most significant tributary. Whaley and Sylvan lakes and Beacon Reservoir, its largest, deepest and highest lakes, are among the bodies of water within the watershed. While the creek is not impounded for use in any local water supply, it remains a focus of regional conservation efforts as a recreational and aesthetic resource, especially since the lower Fishkill watershed has been extensively developed in the last two decades. It flows through several local parks and is a popular trout stream. Industries and mills along it helped spur the settlement of the region. Course Clove and Sweezy brooks, themselves fed by tributaries named and unnamed draining the steep slopes on either side of the narrow upper Clove Valley in the town of Union Vale, drain the swamps of the valley into Pray Pond just north of the hamlet of Clove. Fishkill Creek is the pond's outflow. It follows Clove Valley Road (County Route 9) closely at first, flowing almost due south alongside it, then swings westward into woods after receiving Christie Pond's outlet brook opposite Clove Cemetery. At a short loop in a swampy area where Bruzgul Road (County Route 21) crosses twice, it receives another tributary, doubles back to the north around a hill to receive another one and then returns to its southward course to widen into McKinney Pond. Once it crosses Bruzgul Road again, it is in Tymor Park, Union Vale's major community center. At the park's south end it flows into Furnace Pond, named for an iron mine that was once nearby, and then into the town of Beekman. It returns to the side of County Route 9, now Clove Valley Road, and crosses under the NY 55 state highway just west of its intersection with Route 9. As that road climbs the side of a hill, Fishkill Creek crosses to its east side. It continues past Beekman's main park to the hamlet of Beekman, then