Passumpsic River

Passumpsic River
The river from the Portland Street Bridge in Saint Johnsbury
Location
CountryUnited States
Physical characteristics
Source 
  locationMain stem: Lyndonville, VT
West Branch: Westmore, VTEast Branch: Brighton, VT
  elevationMain stem 699 feet (213 m), West Branch 968 feet (295 m), East Branch 1,010 feet (310 m)
Mouth 
  location
Connecticut River at Nine Island near East Barnet, VT
  elevation
469 feet (143 m)
LengthMain stem 22.7 miles (36.5 km), West Branch 15.3 miles (24.6 km), East Branch 19.5 miles (31.4 km)
Basin size436 sq mi (1,130 km2)

The Passumpsic River (/pəˈsʌmpsɪk/) is a 22.7-mile-long (36.5 km) tributary of the Connecticut River, in Vermont. Though primarily a Caledonia County river, it is the only river to flow through all three counties of the Northeast Kingdom.