HydroBASINS lev08 watershed · #8080210550
Bassin de Marian 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
137km²
Upstream area
3 130,4km²
Discharge
7,11m³/s
Mean elev.
223m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #8080208770495 km²
- Bassin de Camsell River63 km²
1 dept-equivalent regions (GADM L2)
- Fort Smith137.8 km²100.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
0 distinct species · 0 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°
-6,0°C
Annual rain
260mm
Moisture idx (CMI)
-0,45
Runoff
91mm/an
PET
474mm
AET
240mm
Mean slope
2,7°
Water table
66cm
Forest
6%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)