HydroBASINS lev08 watershed · #8080177190
Bassin de Koyuk River
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 1 administrative regions : Nome
Sub-basin area
286,9km²
Upstream area
2 675,1km²
Discharge
44,91m³/s
Mean elev.
71m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Koyuk River622 km²
- Bassin de Salmon Creek257 km²
1 dept-equivalent regions (GADM L2)
- 288.8 km²100.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 distinct species · 7 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Not enough documented interactions to build a meaningful graph for this territory.
Hydroclimate (BasinATLAS lev08)
Mean T°
-4,6°C
Annual rain
372mm
Moisture idx (CMI)
0,04
Runoff
579mm/an
PET
357mm
AET
274mm
Mean slope
4,4°
Water table
116cm
Forest
0%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)