This ancient range of eroded mountains stretches across almost six provinces. Much of it is now covered in vast forests that help keep the sawn timber industry in business.
In the shape of a huge horseshoe, the Shield - a very old chain of eroded mountains - lines Hudson Bay. Limited by the Innuitian Mountains in the north, and the Appalachians in the south, this vast territory covers almost 1.7 million sq mi. Huge forests and innumerable rivers, some of which are used to produce electricity, flourish in this little inhabited region at heart of the country.