South Fork Koyukuk River

Based on OpenStreetMap data, South Fork Koyukuk River is 257 km long.

South Fork Koyukuk River is in United States, flowing through the subregions of Alaska

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Distributaries / Outflows

South Fork Koyukuk River flows into Koyukuk River , which it joins at N 66° 34′ 51″, W 151° 56′ 34″ at OSM node n2277336173, and there 3,720 km of total upstream flows in.

Tributaries

South Fork Koyukuk River has 10 tributaries.

Fish Creek, which joins it at N 66° 36′ 42″, W 151° 35′ 20″ at OSM node n11418025787, and 326 km of total upstream flows in.
Jim River, which joins it at N 66° 47′ 24″, W 151° 12′ 27″ at OSM node n4867436065, and 178 km of total upstream flows in.
Mosquito Fork, which joins it at N 67° 2′ 49″, W 149° 58′ 52″ at OSM node n4870425091, and 63 km of total upstream flows in.
Glacier Creek, which joins it at N 67° 20′ 15″, W 149° 24′ 31″ at OSM node n4870425318, and 33 km of total upstream flows in.
an unnamed river, which joins it at N 66° 55′ 5″, W 150° 54′ 54″ at OSM node n4870424558, and 12 km of total upstream flows in.
Minnesota Creek, which joins it at N 67° 21′ 14″, W 149° 22′ 56″ at OSM node n6239037719, and 9 km of total upstream flows in.
Hungarian Creek, which joins it at N 67° 6′ 45″, W 149° 57′ 34″ at OSM node n4870425092, and 9 km of total upstream flows in.
Boulder Creek , which joins it at the following points: 4 km of total upstream flows in at N 67° 15′ 55″, W 149° 30′ 48″ at OSM node n6239037926 4 km of total upstream flows in at N 67° 15′ 47″, W 149° 30′ 38″ at OSM node n6239038120
Portland Creek, which joins it at N 67° 18′ 0″, W 149° 27′ 31″ at OSM node n6239037425, and 5 km of total upstream flows in.
an unnamed river, which joins it at N 67° 25′ 3″, W 149° 14′ 4″ at OSM node n4726936471, and 1 km of total upstream flows in.