HydroBASINS lev08 watershed · #8080000300
Bassin de Grand Wash 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 2 administrative regions across 2 countries : Skagway-Yakutat-Angoon, Yukon
Sub-basin area
1 351,1km²
Upstream area
1 351,1km²
Discharge
2,91m³/s
Mean elev.
1 047m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 1341.5 km²98.7% of basin
- 4.6 km²0.3% of basin
6 intersecting protected areas
Kluane / Wrangell-St Elias / Glacier Bay / Tatshenshini-Alsek
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
1329.03 km² overlap
Wrangell-Saint Elias
IUCN IbWilderness Area
1227.96 km² overlap
Wrangell-St. Elias
IUCN IINational Park
1026.82 km² overlap
Wrangell-St. Elias
IUCN VNational Preserve
305.86 km² overlap
National Park
3.35 km² overlap
Russell Fjord
IUCN IbWilderness
2.18 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
260 distinct species · 501 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Grand Wash River : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 61 interactions GloBI sur 3 types (connectance 7.8%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
-1,9°C
Annual rain
1 757mm
Moisture idx (CMI)
0,74
Runoff
3 478mm/an
PET
422mm
AET
422mm
Mean slope
18,1°
Water table
347cm
Forest
1%
Crops
0%
Urban
0%
Protected
98%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)