HydroBASINS lev08 watershed · #7080307750
Bassin de Similkameen 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 across 2 countries : Okanagan-Similkameen, Okanogan
Sub-basin area
197,9km²
Upstream area
9 245,7km²
Discharge
44,44m³/s
Mean elev.
757m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Similkameen River820 km²
- Bassin de Sinlahekin Creek768 km²
2 dept-equivalent regions (GADM L2)
- 107.6 km²54.2% of basin
- 91.0 km²45.8% of basin
15 intersecting protected areas
Protected Area
32.06 km² overlap
Sage and Sparrow
IUCN IVPrivately Owned Conservation Area
7.52 km² overlap
Privately Protected Area
7.52 km² overlap
Scotch Creek
IUCN VWildlife Area Complex
6.07 km² overlap
Privately Protected Area
3.22 km² overlap
Sagebrush Slopes
IUCN IVPrivately Owned Conservation Area
3.22 km² overlap
Sparrow Grasslands
IUCN IVPrivately Owned Conservation Area
1.92 km² overlap
Privately Protected Area
1.92 km² overlap
Privately Protected Area
1.29 km² overlap
6 more protected areassorted by overlap area
Kit Carr
IUCN IVPrivately Owned Conservation Area
1.27 km² overlap
Jane's Lake
IUCN IVPrivately Owned Conservation Area
1.24 km² overlap
Privately Protected Area
1.17 km² overlap
Wildlife Habitat Areas
IUCN Not ApplicableWildlife Habitat Areas
0.74 km² overlap
Kilpoola Lake
IUCN IVPrivately Owned Conservation Area
0.47 km² overlap
Sinlahekin
IUCN VWildlife Area Complex
0.25 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 737 distinct species · 62 930 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Similkameen River : 27 espèces reliées par 107 interactions GloBI sur 5 types (connectance 13.0%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
7,1°C
Annual rain
305mm
Moisture idx (CMI)
-0,66
Runoff
138mm/an
PET
907mm
AET
269mm
Mean slope
14,4°
Water table
771cm
Forest
56%
Crops
3%
Urban
0%
Protected
17%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)