Since I am recently tuned in to River Headwaters, I was pleased to discover Columbia Lake close by. Columbia Lake is the primary lake at the headwaters of the Columbia River, in British Columbia, Canada. It is fed by several small tributaries. Columbia Lake is a fresh water lake located along Highway 93 and 95, between Canal Flats and Fairmont Hot Springs in British Columbia, Canada. Its average July temperature of 18 °C (64.4 °F) makes it the largest warm water lake in the East Kootenay.
The Columbia River is the largest river in the Pacific NW region of North America. The river rises in the Rocky Mountains of British Columbia, Canada. It flows northwest and then south into the US state of Washington, then turns west to form most of the border between Washington and the state of Oregon before emptying into the Pacific Ocean. The river is 1,243 miles long, and its largest tributary is the Snake River. Its drainage basin is roughly the size of France and extends into seven US states and a Canadian province. The fourth-largest river in the United States by volume, the Columbia has the greatest flow of any North American river entering the Pacific.