HydroBASINS lev08 watershed · #3080502160
Bassin de Олёкма
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 : Olekminskiy rayon
Sub-basin area
235km²
Upstream area
95 845,3km²
Discharge
934,67m³/s
Mean elev.
830m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Килейкеннях169 km²
- Bassin de Олёкма9 km²
1 dept-equivalent regions (GADM L2)
- 236.2 km²100.0% of basin
1 intersecting protected areas
WWF-Saha (CHaruoda)
IUCN VIResource Reserve
150.53 km² overlap
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°
-8,0°C
Annual rain
434mm
Moisture idx (CMI)
-0,20
Runoff
300mm/an
PET
546mm
AET
374mm
Mean slope
13,5°
Water table
313cm
Forest
71%
Crops
0%
Urban
0%
Protected
60%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)