HydroBASINS lev08 watershed · #4081028530
Bassin de Sông Mã
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 : Mai Sơn, Sông Mã
Sub-basin area
115,3km²
Upstream area
5 665,6km²
Discharge
104,6m³/s
Mean elev.
685m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Sông Mã921 km²
- Bassin de Sông Mã169 km²
2 dept-equivalent regions (GADM L2)
- Sông MãSơn La · Vietnam111.1 km²96.7% of basin
- 3.8 km²3.3% of basin
1 intersecting protected areas
Sop Cop
IUCN IVNature Reserve
1.72 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 distinct species · 2 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°
21,3°C
Annual rain
1 465mm
Moisture idx (CMI)
0,03
Runoff
524mm/an
PET
1 417mm
AET
978mm
Mean slope
15,8°
Water table
542cm
Forest
1%
Crops
2%
Urban
6%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)