This maritime ecoregion is located in the southeastern corner of Labrador. Inland from the Atlantic coast, it is only slightly affected by the Atlantic Ocean. The mean annual temperature is approximately 0°C. The mean summer temperature is 8.5°C and the mean winter temperature is -8.5°C. The mean annual precipitation ranges from 900 mm in the northeast to 1100 mm in the southwest. This ecoregion is classified as having a maritime mid-boreal ecoclimate. Its forests are dominated by closed stands of balsam fir and black spruce with an understory of feathermoss on moist upland slopes. Paper birch, aspen, and black spruce are typical of disturbed sites. Dry sites are characterized by woodlands of black spruce, kalmia heath, and lichens. A dwarf, open or sometimes closed cover of black spruce and tamarack with evergreen shrubs is found on raised dome bogs. Composed of massive Archean granites, granitic gneisses, and acidic intrusives, this ecoregion is rough and undulating with deeply dissected margins. Its surface rises rapidly from the eastern sea coast to elevations of about 215-365 m asl, and is covered with sandy morainal deposits of variable thickness. Fluvioglacial deposits are sporadically distributed in the form of eskers and river terraces. Humo-Ferric Podzolic soils are dominant with significant inclusions of Ferro-Humic Podzols and Dystric Brunisols, while Fibrisols, Mesisols, and Organic Cryosols occur in wetlands. Permafrost occurs in isolated patches with low ice content, mainly in wetlands. The forests in the region are productive and provide habitat for caribou, moose, black bear, red fox, lynx, other small mammals, waterfowl, and other birds. The main community is Cartwright. The population of the ecoregion is approximately 1800.
This ecoregion is part of the Boreal Shield ecozone.