Step 1 : Introduction to the question "Which national park is the largest in the Canadian Rockies?"
...At 10,878 square kilometers, Jasper National Park is Canada's largest national park in its Rocky Mountains. Covering kilometers of mountain wilderness, Jasper National Park is the wildest of Canada's mountain parks. One of the major attractions of the park it is backcountry trail system. It also boasts one of the world's only icefields accessible by road - the world-famous Columbia Icefields. The park offers hiking, skiing at Marmot Basin and spectacular wildlife viewing, as it is home to some of the healthiest populations of grizzlies, moose, wolves and caribou in North America. Source: JasperNationalPark.com