Fort Whoop-Up was the nickname given to a whisky trading post, originally Fort Hamilton, near what is now Lethbridge, Alberta. During the late 19th century, the post served as a centre for trading activities, including the illegal whisky trade. The sale of whisky was outlawed but, due to the lack of law enforcement in the region prior to 1874, many whisky traders had settled in the area and taken to charging unusually high prices for their goods.

Lethbridge is a city in the province of Alberta, Canada. With a population of 106,550 in the 2023 municipal census. Lethbridge became the fourth Alberta city to surpass 100,000 people. The nearby Canadian Rocky Mountains contribute to the city's warm summers, mild winters, and windy climate. Lethbridge lies southeast of Calgary on the Oldman River.