HydroBASINS lev08 watershed · #7080292970
Bassin de Lillooet 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 3 administrative regions : Fraser Valley, Squamish-Lillooet, Thompson-Nicola
Sub-basin area
2 994,4km²
Upstream area
6 703,9km²
Discharge
235,26m³/s
Mean elev.
1 211m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Birkenhead River655 km²
- Bassin de Lillooet River83 km²
3 dept-equivalent regions (GADM L2)
- 2275.9 km²75.7% of basin
- 727.5 km²24.2% of basin
- 1.2 km²0.0% of basin
13 intersecting protected areas
GARIBALDI PARK
IUCN IIA - Park
773.02 km² overlap
Sea To Sky Wildland Areas
IUCN Not ApplicableSea To Sky Wildland Areas
339.78 km² overlap
Wildlife Habitat Areas
IUCN Not ApplicableWildlife Habitat Areas
120.33 km² overlap
Old Growth Management Areas (Mapped Legal)
IUCN Not ApplicableOld Growth Management Areas (Mapped Legal)
75.67 km² overlap
MKWAL'TS CONSERVANCY
IUCN IIConservancy
38.13 km² overlap
Conservancy
34.64 km² overlap
Conservancy
20.84 km² overlap
GOLDEN EARS PARK
IUCN IIA - Park
19.76 km² overlap
JOFFRE LAKES PARK
IUCN IIA - Park
14.27 km² overlap
4 more protected areassorted by overlap area
A - Park
1.65 km² overlap
Wildlife Management Area
1.35 km² overlap
Conservancy
0.34 km² overlap
MEHATL CREEK PARK
IUCN IIA - Park
0.28 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
958 distinct species · 18 797 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Lillooet River : 25 espèces reliées par 89 interactions GloBI sur 4 types (connectance 13.4%, 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°
3,8°C
Annual rain
1 016mm
Moisture idx (CMI)
0,34
Runoff
1 362mm/an
PET
662mm
AET
498mm
Mean slope
24,7°
Water table
816cm
Forest
49%
Crops
1%
Urban
0%
Protected
30%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)