HydroBASINS lev08 watershed · #7080319120

Bassin de Skagit 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 1 administrative regions : Skagit

Pfafstetter: 78310805

Sub-basin area

258,1km²

Upstream area

4 303,8km²

Discharge

152,02m³/s

Mean elev.

835m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Skagit River124 km²

▲ Receives from 2 basins

Bassin de Skagit River973 km²
Bassin de Kindy Creek479 km²

1 dept-equivalent regions (GADM L2)

Skagit
Washington · United States
258.9 km²
100.0% of basin

19 intersecting protected areas

Glacier Peak
IUCN Ib
Wilderness
45.82 km² overlap
Skagit, Washington
IUCN V
Wild and Scenic River
14.03 km² overlap
Skagit River Bald Eagle
IUCN V
Natural Area
13.69 km² overlap
Illabot Creek, Washington
IUCN V
Wild and Scenic River
12.98 km² overlap
Skagit-Snoqualmie
IUCN V
Wildlife Area Complex
6.95 km² overlap
Skagit Bald Eagle
IUCN V
Natural Area Preserve
5.49 km² overlap
Illabot Creek, Washington
IUCN V
Wild and Scenic River
5.33 km² overlap
Skagit/Sauk River
IUCN V
Private Conservation Land
2.84 km² overlap
Barnaby
IUCN V
Conservation Land
0.90 km² overlap

10 more protected areassorted by overlap area

Lucas
IUCN V
Conservation Land
0.81 km² overlap
Perrigoue Farm
IUCN Not Assigned
Conservation Easement
0.39 km² overlap
Cleveland Shrub Steppe
IUCN V
Natural Area Preserve
0.29 km² overlap
Seattle City Light
IUCN V
Conservation Land
0.25 km² overlap
Skagit County - Alea
IUCN V
Conservation Land
0.22 km² overlap
Noisy-Diobsud
IUCN Ib
Wilderness
0.18 km² overlap
Emergency Watershed Protection Program - Floodplain Easement (EWPP-FPE), Skagit, WA
IUCN V
Watershed Protection
0.06 km² overlap
Napoleon
IUCN V
Conservation Land
0.01 km² overlap
PCON108
IUCN V
Local Land Trust
0.01 km² overlap
PCON107
IUCN V
Private Conservation
0.00 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

678 distinct species · 69 300 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).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Skagit River : 25 espèces reliées par 79 interactions GloBI sur 4 types (connectance 13.3%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.133

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

6,0°C

Annual rain

1 845mm

Moisture idx (CMI)

0,60

Runoff

1 491mm/an

PET

733mm

AET

587mm

Mean slope

20,8°

Water table

771cm

Forest

96%

Crops

Urban

Protected

29%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)