Piscataqua River border dispute

Seavey's Island, site of the Portsmouth Naval Shipyard, is located in the Piscataqua River in Kittery, Maine, United States, opposite Portsmouth, New Hampshire. It encompasses 278 acres (1.13 km2).

The Portsmouth Naval Shipyard, often called the Portsmouth Navy Yard, is a United States Navy shipyard in Kittery on the southern boundary of Maine near the city of Portsmouth, New Hampshire. Founded in 1800, PNS is U.S. Navy's oldest continuously operating shipyard. Today, most of its work concerns the overhaul, repair, and modernization of submarines.As of November 2021, the shipyard employed more than 6,500 federal employees. As well, some of the work is performed by private corporations (e.g., Delphinius Engineering of Eddystone, Pennsylvania; Oceaneering International of Chesapeake, Virginia; Orbis Sibro of Mount Pleasant, South Carolina; and Q.E.D. Systems Inc. of Virginia Beach, Virginia).

Portsmouth Naval Prison is a former U.S. Navy and Marine Corps prison on the grounds of the Portsmouth Naval Shipyard (PNS) in Kittery, Maine. The building has the appearance of a castle. The reinforced concrete naval prison was occupied from 1908 until 1974.

William Whipple House at 88 Whipple Road in Kittery, Maine is one of the oldest houses in Maine and was the birthplace of Founding Father, Revolutionary War general, and Declaration of Independence signatory, William Whipple. The oldest portion of home dates to circa 1660 and was occupied first by Robert Cutt who fortified it as a garrison house. William Whipple was born in the house in 1731 and later he moved to Portsmouth, New Hampshire after his marriage in 1767. In 2017 the house was restored by its new owner Michael Sullivan.

The second USS Portsmouth was a wooden sloop-of-war in the United States Navy in service during the mid-to-late 19th century. She was designed by Josiah Barker on the lines of a French-built privateer, and built at the Portsmouth Navy Yard, directly across the Piscataqua River from Portsmouth, New Hampshire. She was described as an improvement over USS Saratoga built in the same shipyard a year earlier. Portsmouth was launched on 23 October 1843 and commissioned on 10 November 1844, with Commander John Berrien Montgomery in command.

Robert William Traip Academy (often abbreviated as R. W. Traip Academy or simply Traip Academy) is a public high school located in Kittery, Maine. It serves the towns of Kittery and Kittery Point, Maine. It is adjacent to Portsmouth Naval Shipyard. The incoming principal is Jane Durgin, as of July 1st, 2023.[1]

The Rice Public Library is the public library of Kittery, Maine. It is located at 8 Wentworth Street (Maine State Route 103) in the central Kittery Foreside village, in an architecturally distinguished Romanesque Revival building built in 1889 and listed on the National Register of Historic Places in 1979, with a large annex just across the street at 2 Walker Street.

The Robert and Louisa Traip House is a historic house at 2 Wentworth Street (Maine State Route 103) in Kittery, Maine. Built about 1839, it is a rare statewide example of a Greek Revival house with colonnaded sides. Robert Traip, its first owner, was one of Kittery's wealthiest men at the time. The house was listed on the National Register of Historic Places in 1998.

Peirce Island is a historic 27-acre (11 ha) island owned by the city of Portsmouth, New Hampshire, and is connected to adjacent outlying Four Tree Island. It is connected to the mainland by the Peirce Island bridge. The islands are open to the public and have views of salt marsh, tidal pools, rocky cliffs, and meadows as well as the Portsmouth Naval Shipyard, the South End, three bridges over the Piscataqua River, the "back channel", and a small island toward New Castle, New Hampshire. There is also an outdoor pool, walking paths, playgrounds, and boat launch area.There is a sewer treatment plant on the island. Public amenities include parking, a public boat ramp, walking paths, historical markers, rest room on Four Tree Island only, public pool for summer use, and a small playground.The island is located past the historic Point of Graves Burial Ground over the Peirce Island bridge. Fort Washington was located on the island. More recently, the area was known as a meeting place for gay paramours. Fort Washington and Fort Sullivan were built in 1775 and were named for George Washington and local war hero John Sullivan. Fort Washington was a star-shaped earthwork. Both forts were commanded by Captain Titus Salter (or Salten) during the American Revolution. They were re-garrisoned in the War of 1812 and abandoned after that war.The islands were dog friendly until 2016.

The Mark F. and Eliza J. Wentworth House is a historic house at 9 Wentworth Street in Kittery, Maine. Probably built in the second quarter of the 19th century and given Italianate styling c. 1866, it is notable for its association with Mark Fernald Wentworth, a distinguished physician and decorated veteran of the American Civil War. The house was listed on the National Register of Historic Places in 1998.

Kittery is a census-designated place (CDP) consisting of the main village in the town of Kittery in York County, Maine, United States. The village is also known as Kittery Foreside. The population of the CDP was 4,562 at the 2010 census. It is part of the Portland–South Portland–Biddeford, Maine Metropolitan Statistical Area.

Kittery is a town in York County, Maine, United States. Home to the Portsmouth Naval Shipyard on Seavey's Island, Kittery includes Badger's Island, the seaside district of Kittery Point, and part of the Isles of Shoals. The southernmost town in the state, it is a tourist destination known for its many outlet stores. Kittery is part of the Portland–South Portland–Biddeford, Maine metropolitan statistical area. The town's population was 10,070 at the 2020 census.