The Columbia Valley is the name used for a region in the Rocky Mountain Trench near the headwaters of the Columbia River between the town of Golden and the Canal Flats.
(Revelstoke is sometimes referred to as being in the North Kootenay, Golden is usually thought of as being part of the East Kootenay sub-region, the Columbia Valley).
The regional district's dominant landform is the Rocky Mountain Trench, which is flanked by the Purcell Mountains and Rocky Mountains on the east and west, and includes the Columbia Valley region, the southern half of which is in the regional district (its northern half is in the Columbia-Shuswap Regional District).
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Highway 40 forms the central part of the most-direct link between the two cities, allowing travel from the Hi-Line communities and Glacier National Park to the communities of the Columbia Valley in British Columbia without needing to detour south via Kalispell, Montana or north via the Crowsnest Pass between British Columbia and Alberta.