Portsmouth Harbor Light at Fort Constitution

In December 1774, warned by Paul Revere riding up from Boston that the British might seize the powder and reinforce the fort, hundreds of Patriots from Portsmouth and the surrounding towns moved on Fort William and Mary. The small garrison of a handful of soldiers could not hold them off. Over two days the colonists overran the fort, hauled down the King's colors, and carried away barrels of gunpowder along with muskets and cannon.

It was one of the first overt acts of armed defiance against the Crown, months before the shots at Lexington and Concord. The powder taken here is often said to have made its way to the American lines, and the episode is remembered as one of the opening moves of the Revolution in New Hampshire. After independence the fort was rebuilt and renamed Fort Constitution.

The Piscataqua is a demanding river, with one of the strongest tidal currents on the coast, and Portsmouth has long been a vital deep-water port. A lighthouse was first raised at this point in 1771, one of the earliest in the colonies, to guide vessels safely past the ledges into the harbor.

The tower that stands today is a cast-iron lighthouse dating to 1878, painted white and rising beside the fort. Its light still marks the entrance to the harbor. Because it stands on active Coast Guard land, visitors reach it on foot through the fort grounds, and the tower opens to the public on scheduled days run by the local lighthouse society.

The lighthouse sits at the edge of New Castle, the smallest town in New Hampshire, an island of narrow colonial streets and close-set old houses that feels centuries removed from the mainland. A drive or walk through the village is part of the pleasure of coming here.

The harbor itself is very much alive. From the point you can watch tugs, tankers, fishing boats, and, from time to time, submarines from the Portsmouth Naval Shipyard just upriver, moving through the fast current at the river's mouth. It is a fine place simply to sit and watch the traffic of a real working port.

The closest Boutel™ stays, so you can turn this stop into an overnight. Each is a place we chose through independent editorial review, never a paid placement.

The Portsmouth Harbor Light, at Fort Constitution in New Castle on the New Hampshire seacoast, is a historic and picturesque lighthouse standing beside the ruins of a colonial-era fort at the entrance to Portsmouth Harbor. The charming cast-iron lighthouse has guided ships into the harbor for generations, and it sits on the grounds of historic Fort Constitution, a fortification with roots in the colonial and Revolutionary era, giving the site a rich blend of maritime and military history along with lovely coastal views. A scenic and historic spot, it is beloved by lighthouse enthusiasts and photographers. With its historic lighthouse and fort, the Portsmouth Harbor Light at Fort Constitution offers a scenic destination in New Hampshire.

You can view and photograph the picturesque lighthouse, explore the historic ruins of Fort Constitution and learn its colonial and Revolutionary history, take in scenic views of Portsmouth Harbor and the coast, and, on special open days, tour or climb the lighthouse. The historic lighthouse, the fort ruins, and the coastal setting and views are the draws, offering a rich blend of maritime and military history in a beautiful spot. Lighthouse climbs are offered only on certain open days. With its lighthouse and historic fort, the Portsmouth Harbor Light offers an engaging experience in New Hampshire.

The Portsmouth Harbor Light is generally admired from the grounds of Fort Constitution, while access inside the lighthouse and climbs to the top are typically offered only on special open days held periodically through the warm season by the lighthouse's stewards. Because tower access is limited to certain dates, checking the current schedule of open days before you go is important if you hope to climb it. The fort grounds and lighthouse exterior can usually be enjoyed more freely. Planning around the open-tower dates ensures the fullest visit to the Portsmouth Harbor Light at Fort Constitution in New Hampshire.

The warm months of spring through fall offer the most pleasant weather for exploring the fort grounds and photographing the lighthouse, with special lighthouse open days, when offered, typically falling in the warm season, so checking the schedule helps if you wish to climb it. Mornings offer lovely light for photography, and the coastal breeze is pleasant. For pleasant weather and the chance at a tower climb, aim for spring through fall and check the open-day schedule at the Portsmouth Harbor Light at Fort Constitution in New Hampshire.

The Portsmouth Harbor Light at Fort Constitution is in New Castle on the New Hampshire seacoast, within reach of Portsmouth with Strawbery Banke Museum and the USS Albacore, Odiorne Point State Park with the Seacoast Science Center, and the New Hampshire beaches including Wallis Sands and Hampton Beach. That makes the Portsmouth Harbor Light a scenic stop to combine with Strawbery Banke Museum, Odiorne Point State Park, and the other attractions of the New Hampshire seacoast on a visit to the state.