The Schroon River is a 67.7 miles (109 km) tributary of 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...

 in the southern Adirondack Mountains

Adirondack Mountains

The Adirondack Mountains are a mountain range located in the northeastern part of New York, that runs through Clinton, Essex, Franklin, Fulton, Hamilton, Herkimer, Lewis, Saint Lawrence, Saratoga, Warren, and Washington counties....

 of New York

New York

New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...

, beginning at the confluence of Crowfoot Brook and New Pond Brook near Underwood, and terminating at the Hudson in Warrensburg

Warrensburg (CDP), New York

Warrensburg is a census-designated place in Warren County, New York, United States. The population was 3,208 at the 2000 census. It is part of the Glens Falls Metropolitan Statistical Area....

. Its watershed

Drainage basin

A drainage basin is an extent or an area of land where surface water from rain and melting snow or ice converges to a single point, usually the exit of the basin, where the waters join another waterbody, such as a river, lake, reservoir, estuary, wetland, sea, or ocean...

 is entirely within the Adirondack Park. The river runs through the towns of North Hudson

North Hudson, New York

North Hudson is a town in Essex County, New York, United States. The population was 266 at the 2000 census. The town derives its name by being by the north end of the Hudson River....

, Schroon

Schroon, New York

Schroon is a town in the Adirondack Park, in Essex County, New York, United States. The population was 1,759 at the 2000 census. The town is also known as Schroon Lake, which is actually a centrally located lake, and the name of a hamlet on the lake....

, Chester

Chester, Warren County, New York

----Chester is a town in Warren County, New York, United States. It is part of the Glens Falls Metropolitan Statistical Area. The population was 3,614 at the 2000 census...

, Bolton

Bolton, New York

Bolton is a town in Warren County, New York, United States. It is part of the Glens Falls Metropolitan Statistical Area. The population was 2,117 at the 2000 census. Bolton is on the east border of the county.- History :...

, and Warrensburg

Warrensburg (town), New York

Warrensburg is a town in Warren County, New York, USA. It is centrally located in the county, west of Lake George. It is part of the Glens Falls Metropolitan Statistical Area. The town population was 4,255 at the 2000 census. Like the county, the town is named after General Joseph Warren. U.S....

.

Interstate 87

Interstate 87

Interstate 87 is a Interstate Highway located entirely within New York State in the United States of America. I-87 is the longest intrastate Interstate highway in the Interstate Highway System. Its southern end is at the Bronx approaches of the Robert F. Kennedy Bridge in New York City...

, the Adirondack Northway, follows the Schroon River valley from Warrensburg to Underwood. U.S. Route 9

U.S. Route 9

U.S. Route 9 is a north–south United States highway in the states of Delaware, New Jersey, and New York in the United States. It is one of only two U.S. highways with a ferry connection ; the other being US 10. US 9 is signed east–west in Delaware and north–south on the rest of...

 takes a parallel course from Warrensburg to Schroon Lake, then follows the river through Underwood.