Mountain range, southeastern British Columbia, Canada, and northern Idaho and Montana, U.S. The Selkirks extend some 200 mi (320 km) and in many places rise abruptly more than 8,000 ft (2,400 m).
The highest summit is Mount Sir Sanford at 11,555 ft (3,522 m). Crossed by the Canadian Pacific Railway, the range contains parts of Glacier and Mount Revelstoke national parks.