HydroBASINS lev08 watershed · #8080301020
Bassin de Grease 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 : Division No. 18, Fort Smith
Sub-basin area
2 597,8km²
Upstream area
6 188,3km²
Discharge
27,25m³/s
Mean elev.
450m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #8080291630863 km²
- Bassin · #8080291640350 km²
2 dept-equivalent regions (GADM L2)
- Division No. 182319.5 km²88.8% of basin
- Fort Smith292.8 km²11.2% of basin
1 intersecting protected areas
Special Management Area
1475.72 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°
-5,5°C
Annual rain
386mm
Moisture idx (CMI)
-0,22
Runoff
103mm/an
PET
498mm
AET
330mm
Mean slope
2,7°
Water table
63cm
Forest
39%
Crops
0%
Urban
0%
Protected
56%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)