Rattlesnake River

Rattlesnake River
Rattlesnake River is located in New Hampshire
Rattlesnake River
Rattlesnake River is located in the United States
Rattlesnake River
Location
CountryUnited States
StateNew Hampshire
CountyStrafford
TownsFarmington
Physical characteristics
Source 
 • locationFarmington
 • coordinates43°21′25″N 71°4′50″W / 43.35694°N 71.08056°W / 43.35694; -71.08056
 • elevation710 ft (220 m)
MouthCocheco River
 • location
Farmington
 • coordinates
43°21′59″N 71°2′10″W / 43.36639°N 71.03611°W / 43.36639; -71.03611
 • elevation
238 ft (73 m)
Length3.6 mi (5.8 km)

The Rattlesnake River is a 3.6-mile-long (5.8 km)[1] river in eastern New Hampshire in the United States. It is a tributary of the Cocheco River, part of the Piscataqua River watershed leading to the Atlantic Ocean.

The river is located entirely in the town of Farmington. It rises north of Hussey Mountain and Chesley Mountain and flows east to the Cocheco, dropping nearly 500 feet (150 m) in elevation over its length.