The Rocky Mountains.

British Columbia has plenty of mountains. It also has plains in its northeast corner.

Alberta and british Columbia

The Rocky Mountains pass through the Canadian provinces of British Columbia and Alberta. Neither of those provinces are entirely contained within the mountains, however.

British Columbia and Alberta

Alberta. :)

The mountain range that forms the boundary between British Columbia and Alberta in Canada is the Rocky Mountains. The highest point in Alberta is called Mount Columbia.

the mountains that run through columbia, Canada are the Coast mountains