The Kisco River is a creek

Stream

A stream is a body of water with a current, confined within a bed and stream banks. Depending on its locale or certain characteristics, a stream may be referred to as a branch, brook, beck, burn, creek, "crick", gill , kill, lick, rill, river, syke, bayou, rivulet, streamage, wash, run or...

 that runs through the Mount Kisco, New York

Mount Kisco, New York

Mount Kisco is a community that is both a village and a town in Westchester County, New York, United States. The Town of Mount Kisco is coterminous with the village. The population was 10,877 at the 2010 census.- History :...

 area. It is formed by the forks of Chappaqua Brook and an unnamed stream. It follows a 3.3 miles (5.3 km) winding course before emptying into the Muscoot Reservoir

Muscoot Reservoir

The Muscoot Reservoir is a reservoir in northern Westchester County, New York. It is located directly north of the village of Katonah, New York, and is over 25 miles north of New York City, which the reservoir eventually supplies with tapwater...

 at Croton Lake Road Bridge in Bedford

Bedford (town), New York

Bedford is a town in Westchester County, New York, USA. The population was 17,335 at the 2010 census.The Town of Bedford is located in the northeastern part of Westchester County, and contains the three hamlets of Bedford Hills, Bedford Village, and Katonah...

 and eventually into the Atlantic Ocean

Atlantic Ocean

The Atlantic Ocean is the second-largest of the world's oceanic divisions. With a total area of about , it covers approximately 20% of the Earth's surface and about 26% of its water surface area...

 via the Croton River

Croton River

The Croton River is a river in southern New York that begins where the East and West Branches of the Croton River meet a little way downstream from the Croton Falls Reservoir...

, the Hudson River

Hudson River

The Hudson is a river that flows from north to south through eastern New York. The highest official source is at Lake Tear of the Clouds, on the slopes of Mount Marcy in the Adirondack Mountains. The river itself officially begins in Henderson Lake in Newcomb, New York...

, and New York Harbor

New York Harbor

New York Harbor refers to the waterways of the estuary near the mouth of the Hudson River that empty into New York Bay. It is one of the largest natural harbors in the world. Although the U.S. Board of Geographic Names does not use the term, New York Harbor has important historical, governmental,...

.

Course description

The Kisco River begins at the confluence of an unnamed brook and Chappaqua Brook immediately north of the New Castle/Mount Kisco sewage treatment plant and the Saw Mill River Parkway

Saw Mill River Parkway

The Saw Mill River Parkway is a north–south parkway that extends for through Westchester County, New York, in the United States. It begins at the border between Westchester County and the Bronx, where it continues into New York City as the Henry Hudson Parkway, and heads generally...

. It runs through the woods within feet of suburban development

Urban sprawl

Urban sprawl, also known as suburban sprawl, is a multifaceted concept, which includes the spreading outwards of a city and its suburbs to its outskirts to low-density and auto-dependent development on rural land, high segregation of uses Urban sprawl, also known as suburban sprawl, is a...

 and forms the border between the towns of New Castle

New Castle, New York

New Castle is a town in Westchester County, New York, United States. The population was 17,569 at the 2010 census.-Geography:According to the United States Census Bureau, the town has a total area of , of which is land and , or 1.15%, is water. New Castle is bordered by the towns of Mount Pleasant...

 and Mount Kisco, New York

Mount Kisco, New York

Mount Kisco is a community that is both a village and a town in Westchester County, New York, United States. The Town of Mount Kisco is coterminous with the village. The population was 10,877 at the 2010 census.- History :...

. It runs underneath Route 133 after a stream runs into it. It then runs through "Riverwoods", a town house complex. It continues past the Bedford Yeshiva Farm Settlement, a small yeshiva

Yeshiva

Yeshiva is a Jewish educational institution that focuses on the study of traditional religious texts, primarily the Talmud and Torah study. Study is usually done through daily shiurim and in study pairs called chavrutas...

. The Riverwoods wastewater treatment plant discharges its wastewater

Wastewater

Wastewater is any water that has been adversely affected in quality by anthropogenic influence. It comprises liquid waste discharged by domestic residences, commercial properties, industry, and/or agriculture and can encompass a wide range of potential contaminants and concentrations...

 into the river at this point. It then passes underneath Croton Lake Road and empties into the Muscoot Reservoir at its widest point of 1100 feet (335.3 m).

Several storm drains empty into the river along its course. It runs through a primarily developed wetland

Wetland

A wetland is an area of land whose soil is saturated with water either permanently or seasonally. Wetlands are categorised by their characteristic vegetation, which is adapted to these unique soil conditions....

area.