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Portsmouth Harbor Lighthouse: A Beacon of History

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Explore a historic lighthouse within a Revolutionary War-era fort in New Castle, New Hampshire, offering maritime history and scenic harbor views.

Located in New Castle, NH, within the grounds of Fort Constitution, the Portsmouth Harbor Lighthouse has guided mariners since 1771. This historic light offers a glimpse into maritime history and the early days of the American Revolution.

A brief summary to Portsmouth Harbor Lighthouse

Local tips

  • Check the Friends of Portsmouth Harbor Lighthouses website for tour schedules and updates.
  • Combine your visit with a tour of Fort Constitution to explore more of the area's history.
  • Enjoy scenic views of the lighthouse from Great Island Common or Newcastle Commons Park.
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Getting There

  • Driving

    From Portsmouth, take Route 1B South towards New Castle. Follow Route 1B for several miles, and you'll see signs for the Coast Guard Station Portsmouth Harbor and Fort Constitution. Turn right towards the signs and follow the road to the parking area for Fort Constitution. Do not enter the Coast Guard station. Park in the Fort Constitution parking lot and walk a short distance to the lighthouse. Parking is free. Limited parking is available.

  • Walking

    From Newcastle Commons, follow the road towards Fort Stark. Continue along the road, following signs for Fort Constitution and the Coast Guard Station. The walk is approximately 1 mile and should take about 20 minutes. There are no costs associated with walking.

Discover more about Portsmouth Harbor Lighthouse

The Portsmouth Harbor Lighthouse, also known as Fort Point Lighthouse, New Castle Lighthouse, and Fort Constitution Lighthouse, stands as a sentinel at the entrance to Portsmouth Harbor. Its story began in 1771, making it one of the first lighthouses in the American colonies. The original wooden tower witnessed the events leading up to the American Revolution when colonists raided Fort William and Mary for supplies. Over the centuries, the lighthouse has been rebuilt and renovated. The current cast-iron tower dates back to 1878 and is set within the walls of Fort Constitution. The lighthouse played a crucial role in guiding ships through the Piscataqua River's treacherous currents. Today, the light emits a fixed green signal, visible for 12 nautical miles. Visitors can explore the grounds of Fort Constitution and admire the lighthouse. During the summer, the Friends of Portsmouth Harbor Lighthouses offer tours of the tower, providing a chance to climb to the top and enjoy panoramic views. The site offers a unique blend of maritime history and military heritage. Please note that due to storm damage, tours are suspended for the summer of 2024.

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