yes they do.
Actually, no, the provinces of British Columbia, Alberta and Saskatchewan are in western Canada. The Laurentian Mountains are in the Quebec region (central Canada). See links:
http://www.britannica.com/EBchecked/topic/332432/Laurentian-Mountains
or
http://en.wikipedia.org/wiki/Laurentian_Mountains
Alberta, British Columbia, and Saskatchewan
Mountains are located in various regions across Canada. Some well-known mountain ranges in Canada include the Rocky Mountains in Alberta and British Columbia, the Coast Mountains in British Columbia, and the Laurentian Mountains in Quebec. These mountains offer opportunities for outdoor activities such as hiking, skiing, and mountain climbing.
Alberta
the province east of Saskatchewan is Manitoba the province west of Saskatchewan is Alberta
To the north Montana borders Canadian provinces British Columbia, Alberta, and Saskatchewan.
British Columbia, Alberta, and Saskatchewan.
Alberta.
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 province west of Saskatchewan and east of British Columbia is Alberta.
Alberta
The 545 mile Northern border of Montana is bounded by British Columbia, Alberta and Saskatchewan.
British Columbia (BC) and Saskatchewan