High Quality Content by WIKIPEDIA articles! The era of steamboats on the Arrow Lakes and adjoining reaches of the Columbia River is long-gone but was an important part of the history of the West Kootenay and Columbia Country regions of British Columbia. The Arrow Lakes are formed by the Columbia River in southeastern British Columbia. Steamboats were employed on both sides of the border in the upper reaches of the Columbia, linking port-towns on either side of the border, and sometimes boats would be built in one country and operated in the other. Tributaries of the Columbia include the Kootenay River which rises in Canada, then flows south into the United States, then bends north again back into Canada, where it widens into Kootenay Lake. As with the Arrow Lakes, steamboats once operated on the Kootenay River and Kootenay Lake.