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Posts tagged Northwestern Territories

Mackenzie River Passing Great Bear Lake, Canada

66.1N 120.3W

July 6th, 2010 Category: Lakes, Rivers

Canada - June 2nd, 2010

Canada - June 2nd, 2010

The Mackenzie River carries brown sediments past the frozen Great Bear Lake (upper right) in Canada’s Northwest Territories, on its way towards the Beaufort Sea and Arctic Ocean. It is the longest river in Canada at 1,738 kilometres (1,080 mi).

Many other lakes dot the landscape near the river. Some are blue, having thawed during the warmer summer months, while many others are still frozen. The Mackenzie River itself generally freezes over in October and begins to thaw in May, meaning it is only navigable for approximately five months of the year.

Great Bear Lake and Great Slave Lake, Canada

61.6N 113.7W

July 3rd, 2010 Category: Lakes, Sediments

Canada - June 1st, 2010

Canada - June 1st, 2010

Many lakes, large and small, are dotted across Canada’s Northwest Territories. The largest two are the Great Bear Lake, upper left corner, and the Great Slave Lake, center.

The Great Bear Lake is the largest lake entirely within Canada (Lake Superior and Lake Huron straddling the Canada-US border are larger), the third largest in North America, and the seventh largest in the world. The lake has a surface area of 31,153 km² (12,028 mi²) and a total volume of 2,236 km³ (536 mi³). Here, it is still frozen over with ice and appears white in color.

The Great Slave Lake is the second-largest lake in the Northwest Territories, the deepest lake in North America at 614 m, and the ninth-largest lake in the world. It covers an area of 27200 km2 in the southern part of the territory. Its volume is 2090 km3. Some ice is visible on the surface, particularly in the northern and western parts, while the eastern portion shows colorful brown and green sediments.