Identify and describe Canada's largest landform

The largest landform of Canada is The Canadian Shield.

Explanation:

It is an igneous rock and an ancient geological feature of North America formed by the result of the volcanic activities. It is commonly known as the Laurentian Plateau.

This large plateau covers the Hudson Bay by encircling it. The Canadian Shield is covered with dense forests in the northern areas with many small wildlife creatures. It has been also declared that the Canadian Shield is rich in minerals and other essential elements.