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Portsmouth Harbor Light

New Hampshire

Portsmouth Harbor Light

Standing sentinel at the entrance to Portsmouth Harbor since 1878, this 48-foot cast-iron lighthouse guides vessels through one of New England’s most historic waterways. Located in New Castle, New Hampshire, the light remains an active aid to navigation, its green beam visible for miles across the Atlantic.

The tower replaced earlier lighthouses dating to 1771, making this site one of America’s oldest light stations. While the lighthouse is not open to public climbing, visitors enjoy excellent views from Fort Constitution Historic Site, which surrounds the tower.

Best Photography: Golden hour offers stunning shots with the Piscataqua River as backdrop.

Nearby Attractions: Fort Constitution, Wentworth-by-the-Sea, and downtown Portsmouth’s colonial architecture and waterfront dining.

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12 places to explore within 30 miles

2 Lighthouses 10 State Parks