Manor Kill
Manor Kill Falls
Location of mouth within New York Show map of New York Adirondack Park Manor Kill (the United States) Show map of the United States
Location
Country	United States
State	New York
Region	Central New York
County	Schoharie
Physical characteristics
Source
• location	Northeast of Manorkill
• coordinates	42°25′00″N 74°17′20″W / 42.4167467°N 74.2887535°W / 42.4167467; -74.2887535[1]
Mouth	Schoharie Reservoir
• location	Southeast of Gilboa
• coordinates	42°22′49″N 74°25′58″W / 42.3803591°N 74.4326471°W / 42.3803591; -74.4326471[1]
• elevation	343 feet (105 m)[1]
Basin size	34.4 square miles (89 km2)[2]
Basin features
Progression	Manor Kill → Schoharie Reservoir → Schoharie Creek → Mohawk River → Hudson River → Upper New York Bay
Tributaries
• right	Bear Kill
Waterfalls	Manor Kill Falls

Manor Kill is a river in Schoharie County in the state of New York. It begins northeast of Manorkill and flows westward before flowing into the Schoharie Reservoir southeast of Gilboa, New York. Manor Kill Falls is located on the creek where it passes under Prattsville Road (County Route 39). Since it drains into the Schoharie Reservoir, it is part of the New York City water supply system.

Manor Kill's watershed receives an average 36.8 inches (930 mm) of precipitation annually. Most of it is concentrated in seasonal events such as summer thunderstorms, remnants of hurricanes later in the year or rain-on-snow events in springtime. This pattern of precipitation, combined with the Manor Kill watershed's slopes and low drainage density, results in flashiness, as the stream and its tributaries rise and fall quickly in response to storm events. The forests that cover much of the watershed tend to mitigate this somewhat.^[2]

The United States Geological Survey (USGS) maintains one stream gauge along Manor Kill. The station, in service since July 1986, is located 1.2 miles (1.9 km) upstream from the mouth, .5 miles (0.80 km) east of West Conesville, had a maximum discharge of 6,590 cubic feet (187 m³) per second on August 28, 2011, as Hurricane Irene passed through the area. It had a minimum discharge of 1 cubic foot (0.028 m³) per second on August 28–31, 1993, September 1–2, 1993 and September 6–8, 1995.^[3]

The village of Conesville was previously known as "Stone Bridge" because of the great arched stone bridge that stood where the present bridge crosses the Bearkill. This bridge was washed away in a flood of 1874.