Browns River (New Hampshire) facts for kids

Quick facts for kids Browns River
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Country	United States
State	New Hampshire
County	Rockingham
Towns	Seabrook, Hampton Falls
Physical characteristics
Main source	Seabrook 40 ft (12 m) 42°53′49″N 70°52′7″W / 42.89694°N 70.86861°W / 42.89694; -70.86861
River mouth	Hampton Harbor Seabrook, Hampton Falls 0 ft (0 m) 42°53′44″N 70°50′7″W / 42.89556°N 70.83528°W / 42.89556; -70.83528
Length	2.9 mi (4.7 km)
Basin features
Tributaries	Left: Swains Creek Right: Hunts Island Creek

The Browns River is a 2.9-mile-long (4.7 km) river, primarily tidal, in southeastern New Hampshire in the United States. It is part of the largest salt marsh in New Hampshire, covering over 3,800 acres (15 km²).

The river rises in the town of Seabrook just east of U.S. Route 1 and quickly enters the salt marsh and tidewater. For most of its length, the river forms the boundary between Seabrook and Hampton Falls. The river runs along the north side of Seabrook Station Nuclear Power Plant, then ends in Hampton Harbor, where it joins the Hampton River.