The Trout River is a tributary of the Missisquoi River, flowing successively in municipalities of Montgomery, in Enosburg and in East Berkshire, in Franklin County, in northern Vermont in the United States.
The Trout River Valley is served by North Main Street (VT 118) passing on the northeast bank of the river. While the upper part is served by Jay Mountain Road (route 242) (north side of the river) and by Hazens Notch Road (route 58) on the south side.
The surface of the Trout River is generally frozen from mid-December to mid-March, with the exception of the rapids; however, safe circulation on the ice generally takes place from late December to early March.
The Trout River rises at the confluence of Jay Brook (coming from East) and Wade Brook (coming from South-East) in Franklin County, Vermont, East of Montgomery, Vermont, at an altitude of . This source is located at the North of the route 58 and south of route 242 (Mountain Road).
From its source, the Trout River flows over 10.7 kilometres (6.6 mi) mainly in agricultural area except the crossing of Montgomery Center and crossing the Missisquoi & Trout Wild and Scenic River, with a drop of , according to the following segments:
The mouth of the Trout River is emptying on the south shore of Missisquoi River, right downstream of a river elbow. From there, the current goes generally westward on 66.3 km (41.2 mi) up to eastern shore of Lake Champlain.[1]
The toponym "Trout River" was registered on October 29, 1980 in the USGS (US Geological Survey).[2]