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The 'Cold River' is a 22.6 mile long (36.5 km) river located in western New Hampshire in the United States. It is a tributary of the Connecticut River, which flows to Long Island Sound.
The Cold River begins at the outlet of ''Crescent Lake'' in the northeastern corner of the town of Acworth, New Hampshire. The river flows east into the town of Lempster, then turns south and reenters Acworth. When ''Dodge Brook'' joins the river, it turns west and makes its way to the Connecticut River, passing the villages of South Acworth, Alstead, and Drewsville. The river reaches the Connecticut just south of the communities of Bellows Falls, Vermont and North Walpole.
In October of 2005, flooding on the Cold River and its tributaries caused severe damage in the towns of Alstead, Acworth, and Walpole.

Contents

Tributaries

Tributaries

(from upstream to downstream)

★ Dodge Brook (from east, near East Acworth)

★ Great Brook (from south, below South Acworth)

★ Warren Brook (in Alstead)

★ Great Brook (Cold River) (from north, in Langdon)