HydroBASINS lev08 watershed · #7080230780
Bassin de Big Creek
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 : Cariboo, Squamish-Lillooet
Sub-basin area
2 395,4km²
Upstream area
2 395,4km²
Discharge
13,92m³/s
Mean elev.
1 572m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 2398.3 km²99.7% of basin
- 6.1 km²0.3% of basin
4 intersecting protected areas
BIG CREEK PARK
IUCN IIA - Park
650.86 km² overlap
Old Growth Management Areas (Mapped Legal)
IUCN Not ApplicableOld Growth Management Areas (Mapped Legal)
82.89 km² overlap
A - Park
3.44 km² overlap
BIG CREEK ECOLOGICAL RESERVE
IUCN IaEcological Reserve
1.92 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
866 distinct species · 3 795 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Big Creek : 22 espèces reliées par 102 interactions GloBI sur 4 types (connectance 16.2%, 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°
0,5°C
Annual rain
376mm
Moisture idx (CMI)
-0,42
Runoff
222mm/an
PET
664mm
AET
327mm
Mean slope
5,4°
Water table
348cm
Forest
87%
Crops
0%
Urban
0%
Protected
27%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)