HydroBASINS lev08 watershed · #8080155650
Bassin de Dease 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 : Fort Smith
Sub-basin area
609,7km²
Upstream area
29 372,1km²
Discharge
79,48m³/s
Mean elev.
157m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Tilchuse River260 km²
- Bassin de Dease River146 km²
1 dept-equivalent regions (GADM L2)
- Fort Smith613.4 km²100.0% of basin
1 intersecting protected areas
National Historic Site
32.80 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 distinct species · 1 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°
-7,1°C
Annual rain
247mm
Moisture idx (CMI)
-0,38
Runoff
159mm/an
PET
402mm
AET
230mm
Mean slope
0,2°
Water table
3cm
Forest
3%
Crops
0%
Urban
0%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)