Chakachatna River

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Chakachatna River
Data
Water code US :  1412738
location Alaska ( USA )
River system McArthur River
Drain over McArthur River  → Pacific Ocean
origin Chakachamna Lake
61 ° 12 ′ 43 "  N , 152 ° 22 ′ 1"  W.
Source height 348  m
muzzle McArthur River Coordinates: 60 ° 56 ′ 44 "  N , 151 ° 44 ′ 30"  W 60 ° 56 ′ 44 "  N , 151 ° 44 ′ 30"  W.
Mouth height 0  m
Height difference 348 m
Bottom slope 5.8 ‰
length 60 km
Discharge at the gauge below Chakachamna Lake
A Eo : 2797 km² 		MQ 1960/1972
Mq 1960/1972
 		103 m³ / s
36.8 l / (s km²)
Left tributaries Barrier Glacier , Kidazgeni Glacier , Straight Creek

The Chakachatna River is a 60 km long river in southwest Alaska . In 1929 the US Geological Survey (USGS) gave the river the Tanaina Indian name.

River course

The Chakachatna River forms the drain of Chakachamna Lake . The Chakachatna River initially flows in an easterly direction, later in a southeastern direction and finally in a southerly direction. For the first few kilometers, it is flanked in the north by the Mount Spurr volcano , which belongs to the Tordrillo Mountains . In the south rise the Neacola Mountains . From the north, the river is fed by the Barrier Glacier and the Kidazgeni Glacier . On the left, the glacier-fed Straight Creek flows into the Chakachatna River a little later . Much of the river water flows southwest over the right arm of the Noaukta Slough into the McArthur River . Another arm of the river, the Middle River , branches off to the left and flows directly into Trading Bay . The rest of the river water reaches the McArthur River 5 km above its mouth in the Cook Inlet via the actual course of the river .

Hydrology

At the gauge a few meters below Chakachamna Lake, the mean discharge is 103 m³ / s. The highest runoffs usually occur during glacier and snow melt in the months of July and August.

Fish fauna

The Chakachatna River and its branches form an important spawning area for sockeye salmon . Silver salmon and, to a lesser extent, king salmon also spawn in the river. In Noaukta Slough in particular , brown and black bears find plenty of food when the salmon return.

Web links

Individual evidence

  1. ↑ Ch'akajabena Lake in the Geographic Names Information System of the United States Geological Survey
  2. ↑ a b Chakachatna River in the Geographic Names Information System of the United States Geological Survey
  3. ↑ a b c USGS 15294500 CHAKACHATNA R NR TYONEK AK
  4. ↑ Noaukta Slough in the Geographic Names Information System of the United States Geological Survey
  5. ^ Middle River in the Geographic Names Information System of the United States Geological Survey
  6. ↑ a b c Trading Bay - State Game Refuge . Alaska Dept. of Fish and Game. Retrieved January 9, 2018.