The Ivishak River/ˈiːviːʃɑːk/ is a 95-mile (153 km) tributary of the Sagavanirktok River in the North Slope Borough of the U.S. state of Alaska.[1] Fed by glaciers at the headwaters, the Ivishak flows northeast, then northwest, through the Philip Smith Mountains and the northern foothills of the Arctic National Wildlife Refuge. It enters the Sagavanirktok River on the coastal plain south of Prudhoe Bay.[3]
On December 2, 1980, 80 miles (129 km) of the Ivishak was designated a National Wild and Scenic River. The protected segments, including the headwaters, an unnamed tributary from Porcupine Lake, and all but the lowermost part of the main stem, lie within the wildlife refuge.[3]
^ abcdef"Ivishak River". Geographic Names Information System. United States Geological Survey. January 1, 2000. Retrieved September 3, 2013.
^Source elevation derived from Google Earth search using GNIS source coordinates.
^ ab"Ivishak River, Alaska". National Wild and Scenic Rivers System. Retrieved September 3, 2013.
The IvishakRiver /ˈiːviːʃɑːk/ is a 95-mile (153 km) tributary of the Sagavanirktok River in the North Slope Borough of the U.S. state of Alaska. Fed...
Shaviovik River – 75 miles (121 km) Kavik River – 75 miles (121 km) Kadleroshilik River – 90 miles (140 km) Sagavanirktok River – 185 miles (298 km) Ivishak River...
River Chilikadrotna River Delta River Fortymile River Gulkana RiverIvishakRiver John River Kobuk River Koyukuk River (North Fork) Mulchatna River Noatak...
ISSN 2169-9003. S2CID 212853086. Shusun, L (May 1997). "Aufeis in the IvishakRiver, Alaska, Mapped from Satellite Radar Interferometry". Remote Sensing...
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