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New Castle topographic map
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New Castle
According to the United States Census Bureau, the town has a total area of 2.3 square miles (5.9 km2), of which 0.81 square miles (2.1 km2) are land and 1.5 square miles (3.8 km2) are water, comprising 64.4% of the town. New Castle occupies an archipelago, consisting of one main island (Great Island) and several smaller islands surrounded by the Piscataqua River and Atlantic Ocean. The main channel of the Piscataqua passes around the north and east sides of Great Island, while Little Harbor is to the south and the smaller islands within Portsmouth Harbor are to the west. The southeastern end of the island, at Fort Stark, faces the Atlantic. The highest point of land is at the Wentworth by the Sea hotel, where the elevation reaches 60 feet (18 m) above sea level.
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About this map
Name: New Castle topographic map, elevation, terrain.
Average elevation: 2 m
Minimum elevation: -3 m
Maximum elevation: 21 m
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