HydroBASINS lev08 watershed · #7080286370
Bassin de Squamish 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 : Squamish-Lillooet, Sunshine Coast
Sub-basin area
157,6km²
Upstream area
2 365,2km²
Discharge
142,49m³/s
Mean elev.
824m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Ashlu Creek340 km²
- Bassin de Squamish River249 km²
2 dept-equivalent regions (GADM L2)
- 156.9 km²99.2% of basin
- 1.2 km²0.8% of basin
5 intersecting protected areas
TANTALUS PARK
IUCN IbA - Park
81.91 km² overlap
Old Growth Management Areas (Mapped Legal)
IUCN Not ApplicableOld Growth Management Areas (Mapped Legal)
4.11 km² overlap
Conservancy
1.87 km² overlap
BRACKENDALE EAGLES PARK
IUCN IVA - Park
0.35 km² overlap
Sea To Sky Wildland Areas
IUCN Not ApplicableSea To Sky Wildland Areas
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
352 distinct species · 1 650 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 Squamish River : 30 espèces reliées par 85 interactions GloBI sur 4 types (connectance 9.9%, filtre Serrano α=0.2). 12 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°
5,6°C
Annual rain
1 298mm
Moisture idx (CMI)
0,48
Runoff
1 711mm/an
PET
676mm
AET
531mm
Mean slope
23,3°
Water table
731cm
Forest
66%
Crops
0%
Urban
0%
Protected
53%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)