HydroBASINS lev08 watershed · #8080019660
Bassin · #8080019660
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 : Aleutians East
Sub-basin area
291km²
Upstream area
291km²
Discharge
10,92m³/s
Mean elev.
230m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 292.3 km²100.0% of basin
3 intersecting protected areas
Marine Protected Area
292.32 km² overlap
Unimak Island
IUCN IbWilderness Area
292.32 km² overlap
Alaska Maritime
IUCN IVNational Wildlife Refuge
292.32 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 distinct species · 2 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°
3,2°C
Annual rain
958mm
Moisture idx (CMI)
0,61
Runoff
1 154mm/an
PET
378mm
AET
371mm
Mean slope
6,7°
Water table
304cm
Forest
0%
Crops
0%
Urban
0%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)