Aboriginal people have lived in the Osoyoos area for thousands of years, as evidenced by rock and an oral tradition explaining their history before Europeans arrived to the valley in 1811.
The first Europeans to Osoyoos were fur traders working for the Pacific Fur Company, an American enterprise. They ventured up the Okanagan River to Osoyoos Lake and farther north. After the Hudson’s Bay Company took over the fur trade in 1821, the Okanagan Valley became a major trade route for supplies to inland forts of British Columbia and furs that were shipped south to the Columbia River and the Pacific to European and Asian markets. The final Hudson’s Bay Company brigade in 1860 was the end of an era, as gold rushes transformed the economy of the new Colony of British Columbia. As parties of miners headed for the Fraser goldfields via the Okanagan Trail, they commonly met conflict with the Okanagan people.
Thousands of miners heading to the goldfields and drovers with large herds of livestock crossed the 49th parallel after 1858. A custom house was built in Osoyoos in 1861 with John Carmichael Haynes the tax collector. Haynes was also the first pioneer settler who obtained land along the Okanagan River north of Osoyoos that had been part of the Osoyoos Indian Reserve established by the Joint Indian Reserve Commission in 1877. These lands, now known as the Haynes Lease lands, can still be visited today and are home to an original barn.
Osoyoos was incorporated as a village in 1946 and became a town in the 1980s
