Aniakchak River

Aniakchak River
Surprise Lake , headwaters of the Aniakchak River
Data
Water code	US :  1398293
location	Alaska (USA)
River system	Aniakchak River
Source lake	Surprise Lake at Mount Aniakchak 56 ° 56 ′ 45 ″  N , 158 ° 10 ′ 44 ″  W
Source height	322  m
muzzle	Aniakchak Bay Coordinates: 56 ° 45 ′ 49 "  N , 157 ° 29 ′ 43"  W 56 ° 45 ′ 49 "  N , 157 ° 29 ′ 43"  W.
Mouth height	0  m
Height difference	322 m
Bottom slope	7.3 ‰
length	44 km
National Wild and Scenic River

The Aniakchak River is a river in the Aniakchak National Monument and Preserve on the Alaska Peninsula in southwestern Alaska .

The Aniakchak River forms the outflow of Surprise Lake , a lake in the caldera of the Mount Aniakchak volcano , flows southeast and finally flows into Aniakchak Bay on the south coast of the Alaska Peninsula .

The river breaks through the caldera wall in a gorge called "The Gates" with a gradient of 15 m / km. It follows for about 15 km of calmer water to the confluence of Hidden Creek , from where the river forms tight bends in a narrow bed for about 8 km. After that, the Aniakchak meanders through the coastal plain to the mouth at a slow flow rate.

The Aniakchak River and its four largest tributaries, Hidden Creek , Mystery Creek , Albert Johnson Creek, and North Fork Aniakchak River , were designated a National Wild and Scenic River under the administration of the National Park Service in 1980 by the Alaska National Interest Lands Conservation Act .

Web links

Commons : Aniakchak River  - collection of images, videos and audio files

Individual evidence

1. ↑ Surprise Lake in the Geographic Names Information System of the United States Geological Survey
2. ^ ^{A b} Aniakchak River in the Geographic Names Information System of the United States Geological Survey
3. ↑ Aniakchak National Monument & Preserve: Aniakchak River on nps.gov
4. ↑ National Wild & Scenic Rivers - Aniakchak River ( Memento June 10, 2010 in the Internet Archive )