Oswegatchie River

Oswegatchie River
Oswegatchie River access on Inlet Road
Location of the mouth Show map of New York Adirondack Park Oswegatchie River (the United States) Show map of the United States
Native name	Kaniatarahòn:tsi (Mohawk)
Location
Country	United States
State	New York
Region	Adirondack Mountains
Counties	St. Lawrence, Jefferson, Herkimer, Hamilton
Physical characteristics
Source
• coordinates	44°01′13″N 74°49′26″W / 44.0203396°N 74.8237923°W / 44.0203396; -74.8237923
Mouth	Saint Lawrence River
• location	Ogdensburg
• coordinates	44°41′45″N 75°29′51″W / 44.6958958°N 75.4974483°W / 44.6958958; -75.4974483
• elevation	243 ft (74 m)
Length	137 mi (220 km)
Basin size	1,592 sq mi (4,120 km2)
Basin features
Tributaries
• left	West Branch Oswegatchie River, Black Lake

The Oswegatchie River is a 137-mile-long (220 km)^[1] river in northern New York that flows from the Adirondack Mountains north to the Saint Lawrence River. The Oswegatchie River begins at Partlow Lake in Hamilton County, New York. The river continues through Cranberry Lake which was 'doubled in size' through construction of a dam in the late 1860s. The river continues from the dam to Gouverneur, to near Talcville in St. Lawrence County, where it joins the West Branch. Much of it is within Adirondack State Park. The city of Ogdensburg developed at the mouth of the river at its confluence with the St. Lawrence.