The Kootenays are more or less defined by the Kootenay Land District, though some variation exists in terms of what areas are or are not a part. The strictest definition of the region is the drainage basin of the lower Kootenay River from its re-entry into Canada near Creston, through to its confluence with the Columbia at Castlegar'. In most interpretations, however, the region also includes:
an area to the southwest encompassing the Columbia's drainage from the Kootenay confluence south to the U.S. Border plus the SalmoRiver basin. This adds the communities of Rossland, Castlegar, Fruitvale and Salmo '
Some or all of the following areas to the north, which drain into the Columbia River, are also commonly included in the Kootenays:
The Columbia drainage between the Rogers Pass and the Eagle Pass, in and around the town of Revelstoke. '
When the above regions are added, sometimes the region's name is morphed into Columbia-Kootenay or Kootenay-Columbia, although that terminology also includes the Big Bend Country and Kinbasket Lake, to the north of Golden and Revelstoke, which is not generally considered part of the Kootenays, though part of the Kootenay Land District. Finally, the Boundary Country, a southern east-west corridor between the Okanagan and the Bonanza Pass and drained by the basins of the Kettle and Granby Rivers, is sometimes mentioned as being in the West Kootenay, and in other reckonings as being part of the Okanagan. In actuality, the settlement of the Boundary Country predates development in either of the regions it is now attached to, as is also the case with the Similkameen Country to the west of the Okanagan. In some descriptions, the Boundary Country includes Osoyoos and Oliver in the South Okanagan. The Boundary Country is ' In the event of its inclusion, the Kootenays could be described as the complete Canadian portion of the Columbia Basin minus lands drained by the Okanagan River.
Naming and subdivision
Contingent on the above boundaries, the Kootenays are commonly split either into East and West, or East, Central and West. In general use amongst locals of the area, the "East/West" convention is more common as a descriptor of where someone is from or where a town is located. That being said:
The usual East-West separator is the Purcell Mountains, a range running north/south through the region. Areas to the east of this range are deemed to be in "East Kootenay" or the "East Kootenays" while places west of this division are in "West Kootenay" or the "West Kootenays". This places Creston and points east in the East Kootenay and Crawford Bay, Salmo and points west in the West Kootenay.
The usual East-Central-West separators are the Purcell Mountains splitting East from Central and the Selkirk Mountains splitting Central from West.
It remains unclear why both Kootenay and Kootenays are used somewhat interchangeably to describe the area. The plural form is in reference to The Kootenays, both East and West; the singular is in reference to the Kootenay Region. In practice the two terms are used interchangeably, although one indicates a geographical region and the other a legal boundary, the Kootenay Land District, which was identical with the original federal and provincial Kootenay ridings.
Economy
Once settled by miners and smelter workers - the area experienced a silver rush in the 1890s, the district now contains an important fruit-growing section and numerous commercial centres, including Grand Forks, Kaslo, Robson, Ymir, Warfield, Montrose, Fruitvale, Salmo, Trail, Nelson, Slocan, Playmor, Winlaw, Cranbrook, Kimberley, Fernie, Castlegar, Rossland, Erickson, and Creston. A number of Community Radio stations have developed in the region, most notably CJLY-FM in Nelson and CIDO-FM in Creston. These stations usually operate either as Cooperatives or as non-profit Societies.