National Historic Site of Canada

Fort Mississauga National Historic Site of Canada

Niagara-on-the-Lake, Ontario

Also known as Fort Mississauga, Niagara National Historic Sites of Canada, Lieux historiques nationaux du Canada du Niagara

General view of Fort Mississauga showing the square massing of the tower.

General view of Fort Mississauga showing the square massing of the tower.

Photo: Parks Canada Agency / Agence Parcs Canada.

Built
1814–1840
Recognized
1960
By
Government of Canada

The register’s text, word for word

Description

Fort Mississauga is a large, square, brick defensive tower set within the remains of earthworks on the shoreline of the Niagara River. On the landward side, it is surrounded by golfing greens located within the town of Niagara-on-the-Lake.

Heritage value

Fort Mississauga was declared a national historic site because:

  • it is an important example of military construction within a military complex of national historic importance,
  • completed after the War of 1812, the fort and its central tower were located in a strategic position at the mouth of the Niagara River to protect the British/Canadian side of the frontier and to serve as a counterpoise to Fort Niagara on the American side,

-it is the only remaining example in Canada of its type of fortification - a square tower within a star-shaped earthwork.

The heritage value of Fort Mississauga lies in its illustration of a rare type of military structure located in a strategic position.

SourceHistoric Sites and Monuments Board of Canada, Minutes, May 1960, October 1963, June 1994; Commemorative Integrity Statement.

Character‑defining elements

Key features contributing to the heritage value of this site include:

  • the strategic location beside the lake at the mouth of the Niagara River,
  • the square massing of the tower,
  • the outline (both profile and footprint), and composition of the star-shaped earthwork,
  • the defensive design elements of the tower such as the smooth non-combustible walls, elevated entry and fireproof roofing,
  • the brick construction materials and skilled craftsmanship of the tower,
  • the volume of the powder magazine and its bomb and fire-proof construction,
  • the remains of casemates, and built landscape features including the earthworks with its glacis, ravelin, gate and sallyport,
  • the spatial and functional relationships between the tower and earthworks,
  • the archaeological remains of other structures such as the footprint and remnants of former buildings within the fort earthworks and the 1804 lighthouse and lightkeeper's residence,
  • the viewplanes to the mouth of the Niagara River and to Fort Niagara.

End of the register’s text

Location

223 Queen Street, Niagara-on-the-Lake, Ontario, Canada

43.26068° N, 79.07865° W

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Nearby

All 39 places in Niagara-on-the-Lake

Similar places

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From the Canadian Register of Historic Places, as last updated on December 12, 2025. The register’s text is shown word for word.