Within Labrador, this ecozone occupies the northernmost section.

The largest ecozone, the Boreal Shield, extends in a broad, U-shape from northern Saskatchewan to Newfoundland.

The Eagle Plateau ecoregion comprises the Mealy Mountains and an area south of Lake Melville in southern Labrador.

Newfoundland and Labrador can be divided into three ecozones: Artic Cordillera, Tiaga Shield, and Boreal Shield.