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Tonge's Island National Historic Site of Canada

Sackville, New Brunswick, E4L, Canada

Formally Recognized: 1925/05/15

General view of the plaque and cairn at Tonge's Island National Historic Site of Canada, 2002.; Parks Canada Agency / Agence Parcs Canada, 2002.
General view
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Other Name(s)

Tonge's Island National Historic Site of Canada
Tonge's Island
Île de La Vallière

Links and documents

Construction Date(s)


Listed on the Canadian Register: 2009/11/24

Statement of Significance

Description of Historic Place

Tonge’s Island National Historic Site of Canada is located on a triangular section of land known as the Tantramar Marsh, near Sackville, New Brunswick. An important Acadian settlement, the site consists of a low hill covered with brackish marshland, known as Tonge’s Island, located on the western side of the Missiguash River. Official recognition refers to the hill known as Tonge’s Island.

Heritage Value

Tonge’s Island was designated a national historic site of Canada in 1925 because:
- it was the capital of Acadia, 1678 - 1684.

In 1676, Michel le Neuf de la Vallière was granted a small section of land on the southwest coast of the Isthmus of Chignecto, across the Missiguash River from the small Acadian settlement of Beaubassin. La Vallière set up his manor west of the river, on a low hill surrounded by brackish marshland. His small settlement expanded, with the Acadians applying their aboiteaux to slowly drain and desalinate the marshes, and eventually a stockade and a mill were constructed.

When la Vallière became the governor of Acadia in 1678, his settlement on Tonge’s Island became the capital. The settlement served as the capital of Acadia until 1684 when, because of a dispute with other seigneurs over the granting of fishing licenses to Bostonian ships, the French stripped la Vallière of his governorship. The settlement at Tonge’s Island languished for the next century while the community of Beaubassin across the river grew into an important Acadian town. When tensions rose between the British and French, the Beaubassin villagers fled west across the Missiguash River to the newly built Fort Beauséjour on the ridge north of the marsh, and their new settlement became focused there, rather than on the less-defensible Tonge’s Island.

Sources: Historic Sites and Monuments Board of Canada, Minutes, May 1926, May 1927, July 2007.

Character-Defining Elements

Key elements contributing to the heritage value of this site include:
- its siting on the Chignecto isthmus, a region that was hotly contested during much of Canadian history by French, English and Acadian forces;
- the geographic location of the “island” within the surrounding landscape on a slight rise of land that defines the approximate boundary of Tonge’s Island and the settlement of Michel le Neuf de la Vallière;
- its proximity to other Acadian sites, including Beaubassin, Fort Beauséjour and Fort Lawrence National Historic Sites of Canada;
- the surrounding viewscapes and terrain including to the Missiguash River and farmland to the east, the dyked marshland to the northwest, and Chignecto Bay to the south;
- the integrity of any surviving or as yet unidentified archaeological remains which may be found within the site in their original placement end extent.




Recognition Authority

Government of Canada

Recognition Statute

Historic Sites and Monuments Act

Recognition Type

National Historic Site of Canada

Recognition Date


Historical Information

Significant Date(s)

1678/01/01 to 1684/01/01

Theme - Category and Type

Governing Canada
Government and Institutions
Peopling the Land

Function - Category and Type


Historic or Interpretive Site



Architect / Designer



Michel le Neuf de la Vallière

Additional Information

Location of Supporting Documentation

National Historic Sites Directorate, Documentation Centre, 5th Floor, Room 89, 25 Eddy Street, Gatineau, Quebec.

Cross-Reference to Collection

Fed/Prov/Terr Identifier




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