Koyuk River
| Koyuk River | ||
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| Data | ||
| Water code | US : 1404983 | |
| location | Alaska (USA) | |
| River system | Koyuk River | |
| source | small lake, 4 km north of Kuzitrin Lake 65 ° 25 ′ 42 ″ N , 163 ° 12 ′ 55 ″ W |
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| Source height | approx. 460 m | |
| muzzle |
Nortonsund coordinates: 64 ° 55 ′ 45 " N , 161 ° 8 ′ 3" W 64 ° 55 ′ 45 " N , 161 ° 8 ′ 3" W. |
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| Mouth height | 0 m | |
| Height difference | approx. 460 m | |
| Bottom slope | approx. 2.6 ‰ | |
| length | approx. 180 km | |
| Left tributaries | Peace River , East Fork Koyuk River | |
| East Fork Koyuk River | ||
| Water code | US : 1401594 | |
| location | Alaska (USA) | |
| River system | Koyuk River | |
| Drain over | Koyuk River → Bering Sea | |
| Headwaters |
Nulato Hills 65 ° 23 ′ 35 ″ N , 160 ° 11 ′ 21 ″ W. |
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| Source height | approx. 400 m | |
| muzzle | Koyuk River 65 ° 7 ′ 22 ″ N , 161 ° 0 ′ 2 ″ W. |
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| Mouth height | 4 m | |
| Height difference | approx. 396 m | |
| Bottom slope | approx. 7.5 ‰ | |
| length | 53 km | |
The Koyuk River is an approximately 180 km long tributary of Norton Sound in western Alaska .
The Koyuk River has its origin in a small lake 4 km north of Kuzitrin Lake on the northeast flank of the Twin Calderas in the center of the Seward Peninsula . It initially flows 60 km in an easterly direction through the highlands of the peninsula. The Bendeleben Mountains rise south of the river . The upper 30 km of the Koyuk River is within the Bering Land Bridge National Preserve . In the middle reaches the Koyuk River first turns south-south-east and after about 20 km towards east-south-east. The Koyuk River shows a strongly meandering behavior with numerous river loops on this river section . The Peace River and the East Fork Koyuk River flow into the Koyuk River on the left. This turns in the lower reaches to the south, reaches the coastal lowlands and turns gradually to the west, before it flows into Norton Bay , located in the extreme northeast of Nortonsund, at the settlement of Koyuk .
The Eskimo name of the river was noted as Kvyguk by Captain Mikhail Dmitrijewitsch Tebenkow of the Imperial Russian Navy in 1852 . The current spelling comes from AH Brooks from the US Geological Survey (USGS) in 1900.
East Fork Koyuk River
The East Fork Koyuk River is a 53 km long left tributary of the Koyuk River. It rises in the Nulato Hills at an altitude of about 400 m . From there it flows in a south-westerly direction and finally flows into the Koyuk River, 37 km above its mouth in Norton Bay . The East Fork Koyuk River shows a strongly meandering behavior over almost its entire length of flow.