Ivishak River

Ivishak River
Upper reaches of the Ivishak River in the Brook range
Data
Water code	US :  1404009
location	Alaska (USA)
River system	Sagavanirkenok River
Drain over	Sagavanirkenok River  → Arctic Ocean
Headwaters	Philip Smith Mountains ( Brooks chain ) 68 ° 34 '25 "  N , 147 ° 16' 43"  W
muzzle	Sagavanirken River at Prudhoe Bay Coordinates: 69 ° 29 '55 "  N , 148 ° 30' 22"  W 69 ° 29 '55 "  N , 148 ° 30' 22"  W.
Mouth height	164  m
length	approx. 150 km

The Ivishak River is an approx. 150 km long right tributary of the Sagavanendetok River in the North Slope of Alaska .

It has its source in the Brooks Range on the continental divide and flows first in a northeastern, then northwestern direction through the Philip Smith Mountains , the northern foothills of the Arctic National Wildlife Refuge and finally the tundra of the coastal plain. The Ivishak flows about 100 km south of Prudhoe Bay into the Sagavaninsk River, which flows into the Beaufort Sea .

The 129 km long section of the Ivishak River in the Arctic National Wildlife Refuge together with the entire headwaters and an unnamed tributary from Porcupine Lake were designated as a National Wild and Scenic River in 1980 by the Alaska National Interest Lands Conservation Act .

Individual evidence

1. ^ ^{A b} Ivishak River in the Geographic Names Information System of the United States Geological Survey
2. ↑ ANILCA, Title 6, Part B: Wild and Scenic Rivers within National Wildlife Refuge System Additions ( Memento of January 14, 2009 in the Internet Archive )
3. ↑ National Wild & Scenic Rivers - Ivishak River ( Memento June 10, 2010 in the Internet Archive )