Central Canadian Shield forests
This ecoregion consists of rolling hills, lakes, bogs and rocky outcrops covering a large curved swathe on the Canadian Shield from eastern Manitoba and Northern Ontario running southeastwards through Thunder Bay District to the north shore of Lake Superior and then northeastwards into western Quebec. The area has a cool climate with summer temperatures averaging around 13°C dropping to a very cold -17°C in winter, with the hills around Lac Seul in northwestern Ontario being warmer and wetter than most of the area. Average rainfall in the eastern side of the ecoregion is 550mm per year, rising to 750mm in the centre (near Lake Nipigon for example), up to 900mm in the west. Specific areas include Lake Nipigon and Big Trout Lake (Ontario). These forest contrast with more severe boreal forest ecoregions such as the Eastern Canadian Shield taiga to the north, which covers most of Northern Quebec and Labrador.
Eastern Canadian forests
This ecoregion contains a number of mountainous areas on the east coast of Canada and along the Saint Lawrence River in eastern Quebec (including Anticosti Island in the Saint Lawrence and the coast up to near Labrador, on the island of Newfoundland, in the highlands of New Brunswick, and the Cape Breton Highlands on Cape Breton Island, Nova Scotia. The mountains included are the Laurentian Mountains, to the north of the ecoregion, and the northernmost ranges of the Appalachian Mountains chain to the south, with peaks over 1000m, including the rugged Gaspé Peninsula of Quebec. The climate is cool and wet and the coast is subject to heavy fog, especially on the Strait of Belle Isle between Labrador and Newfoundland for example. The Central Canadian Shield forests ecoregion lies inland to the west and has more black spruce than the balsam fir that are the dominant tree in this ecoregion.