Big River (Kuskokwim River)
| Big River | ||
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| Data | ||
| Water code | US : 1399005 | |
| location | Alaska (USA) | |
| River system | Kuskokwim River | |
| Drain over | Middle Fork Kuskokwim River → Kuskokwim River → Bering Sea | |
| origin | nameless glacier in the Revelation Mountains 61 ° 45 ′ 21 ″ N , 154 ° 0 ′ 41 ″ W |
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| Source height | approx. 900 m | |
| muzzle |
Middle Fork Kuskokwim River at McGrath Coordinates: 62 ° 57 '55 " N , 154 ° 52' 41" W 62 ° 57 '55 " N , 154 ° 52' 41" W. |
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| Mouth height | 109 m | |
| Height difference | approx. 791 m | |
| Bottom slope | approx. 3.8 ‰ | |
| length | approx. 210 km | |
| Left tributaries | Outflow from the Revelation Glacier | |
| Right tributaries | Lyman Fork, North Fork Big River | |
 Big River in the catchment area of the Kuskokwim River |
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| North Fork Big River | ||
| Water code | US : 1407158 | |
| location | Alaska (USA) | |
| River system | Kuskokwim River | |
| Drain over | Big River → Middle Fork Kuskokwim River → Kuskokwim River → Bering Sea | |
| Headwaters | to the north of the Revelation Mountains 62 ° 1 ′ 15 ″ N , 154 ° 10 ′ 15 ″ W |
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| Source height | approx. 1500 m | |
| muzzle | Big River 61 ° 58 ′ 0 " N , 154 ° 36 ′ 33" W. |
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| Mouth height | 445 m | |
| Height difference | approx. 1055 m | |
| Bottom slope | approx. 29 ‰ | |
| length | 37 km | |
The Big River is an approximately 210 km long left tributary of the Middle Fork Kuskokwim River in the southwestern interior of Alaska .
The river rises from a glacier east of Mount Hesperus in the Revelation Mountains on the western side of the Alaska range between Lake Clark and Denali National Park . It flows north-northwest to the confluence with the Middle Fork of the Kuskokwim River 39 km east of McGrath .
The name is a translation of "Kwikpak", the aboriginal name for the river.
North Fork Big River
The North Fork Big River is a 37 km long right tributary of the Big River in the north of the Revelation Mountains.