Atigun Pass

Atigun Pass (/ˈætɪɡən/ AT-i-gən[1]), elevation 4,739 feet (1,444 m), is a high mountain pass across the Brooks Range in Alaska, located at the head of the Dietrich River.[2][3] It is where the Dalton Highway crosses the Continental Divide (at mile marker 244), and is the highest pass in Alaska that is maintained throughout the year.[2][4] Atigun is the only pass in the Brooks Range that is crossed by a road. The pass has been responsible for taking many drivers off the road and is also home to avalanches during the winter.

Atigun Pass
Composite 240-degree view of Atigun Pass
Elevationapprox. 4700 ft.
Traversed byDalton Highway
LocationNorth Slope Borough, Alaska, United States
RangeBrooks Range
Coordinates68°07′46″N 149°28′33″W
Atigun Pass, Dalton Highway

Atigun is known among bush pilots for the difficulty of crossing the pass with small planes; Anaktuvuk Pass is favored as the safer flying route..

The pass is often shown on the third and fourth seasons of the History Channel reality series Ice Road Truckers, which focuses on the challenges of driving on the Dalton Highway.

Atigun Pass, facing north.

Climate
Climate data for Atigun Pass
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 42
(6)		 33
(1)		 35
(2)		 47
(8)		 62
(17)		 67
(19)		 69
(21)		 61
(16)		 52
(11)		 44
(7)		 41
(5)		 42
(6)		 69
(21)
Average high °F (°C) −1.7
(−18.7)		 2.8
(−16.2)		 2.8
(−16.2)		 22.8
(−5.1)		 37.6
(3.1)		 50.0
(10.0)		 52.2
(11.2)		 45.7
(7.6)		 34.7
(1.5)		 16.3
(−8.7)		 7.2
(−13.8)		 5.9
(−14.5)		 23.0
(−5.0)
Daily mean °F (°C) −8.3
(−22.4)		 −3.8
(−19.9)		 −4.9
(−20.5)		 15.8
(−9.0)		 30.9
(−0.6)		 44.4
(6.9)		 46.9
(8.3)		 40.6
(4.8)		 30.6
(−0.8)		 12.2
(−11.0)		 1.8
(−16.8)		 −1.5
(−18.6)		 17.1
(−8.3)
Average low °F (°C) −14.8
(−26.0)		 −10.5
(−23.6)		 −12.5
(−24.7)		 9.1
(−12.7)		 24.1
(−4.4)		 38.5
(3.6)		 41.7
(5.4)		 35.6
(2.0)		 26.2
(−3.2)		 7.9
(−13.4)		 −3.6
(−19.8)		 −8.7
(−22.6)		 11.1
(−11.6)
Record low °F (°C) −46
(−43)		 −44
(−42)		 −47
(−44)		 −37
(−38)		 −16
(−27)		 17
(−8)		 23
(−5)		 15
(−9)		 4
(−16)		 −14
(−26)		 −39
(−39)		 −39
(−39)		 −47
(−44)
Average precipitation inches (mm) 0.87
(22)		 0.92
(23)		 0.77
(20)		 1.13
(29)		 1.82
(46)		 2.85
(72)		 4.27
(108)		 4.72
(120)		 2.83
(72)		 1.35
(34)		 0.70
(18)		 0.81
(21)		 23.04
(585)
Average precipitation days 5.29 6.12 5.37 7.33 9.69 12.77 15.22 15.24 12.63 8.79 5.41 5.67 109.53
Source 1: Météo climat stats[5]
Source 2: Météo Climat [6]
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References
  1. Atigun Pass, after an avalanche.
  2. Bureau of Land Management: Alaska's Feature 1998 Archived June 20, 2010, at the Wayback Machine
  3. "Atigun Pass." Encyclopædia Britannica. 2010. Encyclopædia Britannica Online.
  4. Bureau of Land Management: Dalton Highway Maps
  5. "Moyennes 1961-1990 Etats-Unis (Alaska)" (in French). Retrieved 11 November 2019.
  6. "Météo Climat stats for Atigun Pass". Météo Climat. Retrieved 11 November 2019.
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