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According to the United States Census Bureau, the city has a total area of 29.0 square miles, of which 26.7 sq mi is land and 2.3 sq mi is water, comprising 8.06%25 of the city. Dover is drained by the Cochecho and Bellamy rivers. Long Hill has an elevation 300 feet above sea level and is located 3 miles northwest of the city center.
Dover ... More is the oldest permanent settlement in New Hampshire, and the seventh oldest in the United States.
It is one of the colonies four original townships, and once included Durham, Madbury, Newington and Lee. It also included Somersworth and Rollinsford, together which Indians called Newichawannock after the Newichawannock River, now Salmon Falls River.
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