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The Great Lakes (French: Grands Lacs), also called the Great Lakes of North America, are a series of large interconnected freshwater lakes spanning the Canada–United States border. The five lakes are Superior, Michigan, Huron, Erie, and Ontario. (Hydrologically, Michigan and Huron are a single body of water, as they are joined by Straits of ...
The Tundra of North America is a Level I ecoregion of North America designated by the Commission for Environmental Cooperation (CEC) in its North American Environmental Atlas. One of the planet's most recent biomes, a result of the last ice age only 10,000 years ago, the tundra contains unique flora and fauna formed during the last glaciation ...
The area currently classified as taiga in Europe and North America (except Alaska) was recently glaciated. As the glaciers receded they left depressions in the topography that have since filled with water, creating lakes and bogs (especially muskeg soil) found throughout the taiga. Yukon River, Canada.
The ice sheet faded north of the Alaska Range because the climate was too dry to form glaciers. [ citation needed ] The ice sheet covered up to 2,500,000 km 2 (970,000 sq mi) at the Last Glacial Maximum and probably more than that in some previous periods, when it may have extended into the northeast extremity of Oregon and the Salmon River ...
The lists include outlet glaciers, valley glaciers, cirque glaciers, tidewater glaciers and ice streams. Ice streams are a type of glacier [5] and many of them have "glacier" in their name, e.g. Pine Island Glacier. Ice shelves are listed separately in the List of Antarctic ice shelves. For the purposes of these lists, the Antarctic is defined ...
Locally they refer to it as a "landlocked fjord". Such lakes are sometimes called "fjord lakes". Okanagan Lake was the first North American lake to be so described, in 1962. [61] The bedrock there has been eroded up to 650 m (2,133 ft) below sea level, which is 2,000 m (6,562 ft) below the surrounding regional topography. [62]
Type of rock. batholith and igneous. The Sierra Nevada (/ siˌɛrə nɪˈvædə, - ˈvɑːd -/ see-ERR-ə nih-VA (H)D-ə) [6][a] is a mountain range in the Western United States, between the Central Valley of California and the Great Basin. The vast majority of the range lies in the state of California, although the Carson Range spur lies ...
These basins became lakes or were invaded by the ocean. The Baltic Sea [32] [33] and the Great Lakes of North America [34] were formed primarily in this way. [dubious – discuss] The numerous lakes of the Canadian Shield, Sweden, and Finland are thought to have originated at least partly from glaciers' selective erosion of weathered bedrock ...