HydroBASINS lev08 watershed · #7080143650
Bassin de Nass 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 : Kitimat-Stikine
Sub-basin area
48,5km²
Upstream area
16 663,6km²
Discharge
661,1m³/s
Mean elev.
533m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Stenstrom Creek1871 km²
- Bassin de Nass River1121 km²
1 dept-equivalent regions (GADM L2)
- 48.7 km²100.0% of basin
2 intersecting protected areas
Old Growth Management Areas (Mapped Legal)
IUCN Not ApplicableOld Growth Management Areas (Mapped Legal)
19.37 km² overlap
Wildlife Habitat Areas
IUCN Not ApplicableWildlife Habitat Areas
0.78 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
7 distinct species · 50 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°
3,7°C
Annual rain
939mm
Moisture idx (CMI)
0,31
Runoff
1 140mm/an
PET
647mm
AET
474mm
Mean slope
10,7°
Water table
357cm
Forest
100%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)