Kootenay River


Koo·te·nay River

also Koo·te·nai River K0117900 (ko͞ot′n-ā′) A river, about 780 km (485 mi) long, flowing from southeast British Columbia, Canada, south through northwest Montana, northwest through northern Idaho, and then north again into British Columbia, where it widens to form Kootenay Lake before joining the Columbia River.