CRANBROOK, a town of British Columbia, Canada. Pop. 3,067. It stands in the Kootenay valley, at a height of 3,029 ft., between the Selkirk and Rocky mountains, in the beau tiful district of south-eastern Kootenay for which it is a centre of trade. Lumbering, mixed farming, fruit-growing and mining (silver-lead, gold and copper) are carried on in the district, and the town has water-power for manufactures from local timber, and for other industries. Cranbrook is the chief town of a judicial district.