The Columbia begins its 1,243-mile (2,000 km) journey in the southern Rocky Mountain Trench in British Columbia (BC).
citation
Wikipedia contributors. (2024, March 13). Columbia River. In
Wikipedia, The Free Encyclopedia
. Retrieved March 18, 2024, from
https://en.wikipedia.org/w/index.php?title=Columbia_River&oldid=1213553010
from
Columbia River (Wikipedia)
tags
Columbia River
Rocky Mountain Trench
Rocky Mountains
British Columbia