Course
It starts on the east flank of Manning Park, about 10.3 km north of Allison Pass and flows past the settlements of Eastgate, Princeton, Hedley, Keremeos, and Cawston, closely followed by Highway 3, the Crowsnest Highway. About 25 km upstream from Princeton the river drops over Similkameen Falls. There are numerous viewpoints of the river from the highway, the most popular being Bromley Rock, where it is possible to swim in the river from a spectacular sandy beach, although the water is very cold. It contributes 75% of the flow of the Okanogan River and crosses the international border at Nighthawk, Washington.
Read more about this topic: Similkameen River