Piscassic River

Piscassic River
The Piscassic in Newmarket, NH
Location
CountryUnited States
StateNew Hampshire
CountyRockingham
TownsFremont, Epping, Newfields, Newmarket
Physical characteristics
Source 
  locationFremont
  coordinates43°0′30″N 71°6′2″W / 43.00833°N 71.10056°W / 43.00833; -71.10056
  elevation148 ft (45 m)
MouthLamprey River
  location
Newmarket
  coordinates
43°5′25″N 70°56′28″W / 43.09028°N 70.94111°W / 43.09028; -70.94111
  elevation
30 ft (9.1 m)
Length15.3 mi (24.6 km)
Basin features
Tributaries 
  leftBrown Brook, Folletts Brook
  rightFresh River

The Piscassic River is a 15.3-mile-long (24.6 km) river located in southeastern New Hampshire in the United States. It is a tributary of the Lamprey River, part of the Great Bay and Piscataqua River watershed leading to the Atlantic Ocean.

The river rises in the northeast corner of Fremont and flows east across flat, swampy terrain through the town of Epping. Upon reaching the town of Newfields, where it is joined by the Fresh River, the river turns northeast and winds through rolling terrain to Newmarket, where it reaches the Lamprey River. The Fresh River joins the Piscassic just upstream from the Piscassic Ice Pond in a marshy area of beaver ponds.