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Fort Whoop-Up National Historic Site of Canada

Junction of the St. Mary and Oldman rivers, Lethbridge, Alberta, T1K, Canada

Formally Recognized: 1963/10/28

Fort Whoop-Up HSMBC memorial overlooking the junction of the Oldman and
St. Mary rivers, erected in 1970.; Georgia Green Fooks, 1983.
Fort Whoop-Up HSMBC memorial
View of the 1946 Fort Whoop-Up cairn, placed by the Lethbridge Chamber
of Commerce at the location of the archaeological remains of Fort Whoop-Up.; Trudy Cowan, Parks Canada, 1989.
View of the 1946 Fort Whoop-Up cairn
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Other Name(s)

Fort Whoop-Up National Historic Site of Canada
Fort Whoop-Up
Fort Whoop-Up
Fort Hamilton
Fort Hamilton

Links and documents

Construction Date(s)


Listed on the Canadian Register: 2012/07/27

Statement of Significance

Description of Historic Place

Fort Whoop-Up National Historic Site of Canada is located on a grassy river valley terrace, near the confluence of the St. Mary and Oldman rivers, just south of Lethbridge, Alberta. While there are no remaining aboveground traces of the fort itself, a stone-lined well is visible and low depressions in the ground indicate the original location of the fort’s cellar pits. Official recognition refers to the area marked on a survey of the area dated 10 August 1985.

Heritage Value

Fort Whoop-Up was designated a national historic site of Canada in 1963 because:
- lawless conditions at Fort Whoop-Up, the earliest and most notorious of the “whisky forts,” hastened the formation of the North-West Mounted Police in 1873 to assure the maintenance of law and order in western Canada.

As a result of an 1832 United States law prohibiting the sale of whiskey to Native Americans, two Montana traders, Albert B. Hamilton and John J. Healy, traveled to Canada and established Fort Hamilton in 1869. This “Whisky Fort” became a trading business that competed with the local Hudson’s Bay Company (HBC). Although the HBC sold many of the same goods as Hamilton and Healy, including firearms, foodstuffs and textiles, among other trade items, the HBC sold rum in place of whiskey. The sale of whiskey and firearms from Fort Hamilton led to disorder among the First Nations in the area, and the fort was renamed Fort Whoop-Up in recognition of its reputation as one of the more dangerous and lawless forts in the northwest. The attempt to establish law and order within the region was one of the factors leading to the formation of the North West Mounted Police (NWMP) in 1873.

In 1870, the original fort was destroyed in a fire. A second larger fort, located further north of the original site replaced it. This larger fort contained dwellings, a kitchen, a trade room, a blacksmith’s forge, and an infamous saloon that was the scene of several dangerous incidents. Despite the violence, Fort Whoop-Up was an essential link in the transportation of pelts and hides, and remained the headquarters of trade between Canada and Montana until 1874 when the American traders abandoned the fort. Following the departure of the Americans, the NWMP used the site as an outpost of their Lethbridge detachment periodically between 1876 and 1897. Eventually falling into disrepair, the fort was badly damaged by fire in 1888, and was subsequently dismantled by local settlers for scrap metal and lumber.

Character-Defining Elements

Key elements contributing to the heritage value of this site include: - its location south of Lethbridge, overlooking the confluence of the St. Mary and Oldman rivers; - its setting on a grassy river valley terrace, which features a Lethbridge Chamber of Commerce memorial cairn and a Historic Sites and Monuments Board of Canada memorial;
- the remains of the two phases of the fort, in their location, extent and materials, both discovered and undiscovered; - the integrity of the stone-lined well opening, in its location, extent and materials; - the integrity of the low cellar depression in the ground surface in its footprint and location; - viewscapes of the site and the surrounding hilly grassed landscape.




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)

1869/01/01 to 1874/01/01
1876/01/01 to 1897/01/01

Theme - Category and Type

Function - Category and Type



Commerce / Commercial Services
Trading Post

Architect / Designer



Albert B. Hamilton

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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