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Brooks Range information


Brooks Range
Brooks Range from near Galbraith Lake
Highest point
PeakMount Isto
Elevation8,976 ft (2,736 m)
Coordinates69°12′09″N 143°48′08″W / 69.20250°N 143.80222°W / 69.20250; -143.80222
Dimensions
Length700 mi (1,100 km) East-west
Width150 mi (240 km) North-south
Naming
Native nameGwazhal (Gwichʼin)
Geography
CountriesUnited States and Canada
States/ProvincesAlaska and Yukon
Range coordinates68°12′N 152°15′W / 68.200°N 152.250°W / 68.200; -152.250
Geology
OrogenyLaramide
Age of rockCretaceous

The Brooks Range (Gwich'in: Gwazhał[1]) is a mountain range in far northern North America stretching some 700 miles (1,100 km) from west to east across northern Alaska into Canada's Yukon Territory. Reaching a peak elevation of 8,976 feet (2,736 m) on Mount Isto, the range is believed to be approximately 126 million years old.

In the United States, these mountains are considered a subrange of the Rocky Mountains, whereas in Canada they are considered separate, as the northern border of the Rocky Mountains is considered to be the Liard River far to the south in the province of British Columbia.[2][3]

While the range is mostly uninhabited, the Dalton Highway and Trans-Alaska Pipeline System run through the Atigun Pass (1,415 m, 4,643 ft) on their way to the oil fields at Prudhoe Bay on Alaska's North Slope. The Alaska Native villages of Anaktuvuk and Arctic Village, as well as the very small communities of Coldfoot, Wiseman, Bettles, and Chandalar, are the range's only settlements. In the far west, near the Wulik River in the De Long Mountains is the Red Dog mine, the largest zinc mine in the world.

The range was named by the United States Board on Geographic Names in 1925 after Alfred Hulse Brooks, chief USGS geologist for Alaska from 1903 to 1924.

Various historical records also referred to the range as the Arctic Mountains, Hooper Mountains, Meade Mountains and Meade River Mountains. The Canadian portion of the range is officially called the British Mountains.[4] Ivvavik National Park is located in Canada's British Mountains.

  1. ^ "GNIS Account Login". geonames.usgs.gov. Retrieved 23 April 2018.
  2. ^ The Encyclopedia Americana, Volume 23, page 618 (Grolier 2000).
  3. ^ Safire, William. The New York Times guide to essential knowledge: a desk reference for the curious mind, page 623 (Macmillan 2007 ).
  4. ^ "Download Geographical Names Data". www.nrcan.gc.ca. 2011-06-02. Retrieved 23 April 2018.

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