HydroBASINS lev08 watershed · #7080300210
Bassin de Pitt 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, Greater Vancouver, Squamish-Lillooet
Sub-basin area
1 929,3km²
Upstream area
1 929,5km²
Discharge
108,55m³/s
Mean elev.
838m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 1126.3 km²58.2% of basin
- 804.3 km²41.6% of basin
- 3.7 km²0.2% of basin
30 intersecting protected areas
GARIBALDI PARK
IUCN IIA - Park
387.02 km² overlap
GOLDEN EARS PARK
IUCN IIA - Park
349.52 km² overlap
PINECONE BURKE PARK
IUCN IIA - Park
304.33 km² overlap
Wildlife Management Area
27.17 km² overlap
Old Growth Management Areas (Mapped Legal)
IUCN Not ApplicableOld Growth Management Areas (Mapped Legal)
11.10 km² overlap
Privately Owned Conservation Area
3.41 km² overlap
Pitt River
IUCN IVPrivately Owned Conservation Area
2.80 km² overlap
Addington Point Marsh
IUCN IVPrivately Owned Conservation Area
2.57 km² overlap
Widgeon Marsh Regional Park
IUCN IVProtected Area
2.27 km² overlap
21 more protected areassorted by overlap area
Minnekhada Regional Park
IUCN IVProtected Area
2.08 km² overlap
A - Park
1.96 km² overlap
Wildlife Habitat Areas
IUCN Not ApplicableWildlife Habitat Areas
1.70 km² overlap
Protected Area
1.33 km² overlap
National Wildlife Area
1.25 km² overlap
Privately Owned Conservation Area
1.25 km² overlap
Protected Area
1.24 km² overlap
Ecological Reserve
1.00 km² overlap
Protected Area
0.78 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.76 km² overlap
Privately Owned Conservation Area
0.75 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.70 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.51 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.49 km² overlap
Privately Owned Conservation Area
0.47 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.46 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.40 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.31 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.24 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.14 km² overlap
DUC Fee Simple Lands
IUCN IVOwnership by Environmental Non-Governmental Organization
0.13 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 659 distinct species · 876 753 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 Pitt River : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 90 interactions GloBI sur 4 types (connectance 11.0%, filtre Serrano α=0.2). 10 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°
5,8°C
Annual rain
1 396mm
Moisture idx (CMI)
0,50
Runoff
1 746mm/an
PET
689mm
AET
550mm
Mean slope
21,9°
Water table
757cm
Forest
50%
Crops
1%
Urban
4%
Protected
55%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)