HydroBASINS lev08 watershed · #7080016190
Bassin de Nooksack 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 4 administrative regions across 2 countries : Fraser Valley, Greater Vancouver, Skagit, Whatcom
Sub-basin area
2 155km²
Upstream area
2 155km²
Discharge
65,06m³/s
Mean elev.
648m
Administrative coverage
4 dept-equivalent regions (GADM L2)
- 1875.9 km²86.8% of basin
- 160.7 km²7.4% of basin
- 74.6 km²3.4% of basin
- 50.5 km²2.3% of basin
30 intersecting protected areas
Mount Baker
IUCN IbWilderness
251.46 km² overlap
Stephen Mather
IUCN IbWilderness Area
28.27 km² overlap
North Cascades
IUCN IINational Park
27.30 km² overlap
Nooksack
IUCN VConservation Land
15.47 km² overlap
Ronald J. Taylor
IUCN IaResearch Natural Area
11.51 km² overlap
North Fork Nooksak
IUCN IaResearch Natural Area
6.60 km² overlap
Whatcom
IUCN VWildlife Area Complex
3.70 km² overlap
Arlecho Creek
IUCN VPrivate Conservation Land
2.09 km² overlap
Racehorse Creek
IUCN VLocal Land Trust
1.52 km² overlap
21 more protected areassorted by overlap area
Aldergrove Regional Park
IUCN IVProtected Area
1.48 km² overlap
Steiner 2007
IUCN Not AssignedConservation Easement
0.98 km² overlap
Dailey Prairie
IUCN VNatural Area Preserve
0.88 km² overlap
Reserve Program
0.76 km² overlap
Bear
IUCN VLake
0.64 km² overlap
Olivine Bridge
IUCN VNatural Area Preserve
0.59 km² overlap
Port Blakely
IUCN VLocal Land Trust
0.55 km² overlap
Reserve Program
0.46 km² overlap
Craver
IUCN VLocal Land Trust
0.43 km² overlap
Edfro Creek
IUCN VLocal Land Trust
0.43 km² overlap
Glacier Springs
IUCN VLocal Land Trust
0.34 km² overlap
Whited (Elk Flats)
IUCN VEnvironmental System
0.34 km² overlap
Rutsatz Salmon
IUCN VLocal Land Trust
0.33 km² overlap
Riley
IUCN VOpen Space
0.32 km² overlap
Maple Creek
IUCN VLocal Land Trust
0.32 km² overlap
Local Land Trust
0.30 km² overlap
Local Land Trust
0.28 km² overlap
Wildlife Habitat Areas
IUCN Not ApplicableWildlife Habitat Areas
0.17 km² overlap
Bottiger's
IUCN VPond
0.15 km² overlap
North Fork Eagle
IUCN VLocal Land Trust
0.15 km² overlap
Bear Creek
IUCN VLocal Land Trust
0.14 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 993 distinct species · 371 755 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Nooksack River : 19 espèces reliées par 85 interactions GloBI sur 4 types (connectance 14.3%, filtre Serrano α=0.2). 16 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°
6,9°C
Annual rain
1 496mm
Moisture idx (CMI)
0,50
Runoff
1 228mm/an
PET
718mm
AET
582mm
Mean slope
14,1°
Water table
492cm
Forest
70%
Crops
12%
Urban
3%
Protected
16%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)