HydroBASINS lev08 watershed · #7080015960
Bassin de Cedar 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 : King, Kittitas, Snohomish
Sub-basin area
1 527,9km²
Upstream area
1 527,9km²
Discharge
55,1m³/s
Mean elev.
268m
Administrative coverage
3 dept-equivalent regions (GADM L2)
- King1327.9 km²86.7% of basin
- 203.1 km²13.3% of basin
- 0.4 km²0.0% of basin
30 intersecting protected areas
Watersheds
309.25 km² overlap
Watershed
66.58 km² overlap
West Tiger Mountain
IUCN VNatural Resources Conservation Area
15.53 km² overlap
Chester Morse
IUCN VMonument
5.06 km² overlap
Upper Raging River
IUCN Not AssignedForest
4.62 km² overlap
Historical Marker
4.29 km² overlap
Paradise Valley
IUCN VConservation Area
3.26 km² overlap
Watershed Preserve An
IUCN IIIPreserve
3.13 km² overlap
Tradition Plateau Nrca
IUCN VLocal Conservation Area
1.74 km² overlap
21 more protected areassorted by overlap area
Mcgarvey Park
IUCN VOpen Space
1.62 km² overlap
Watershed
1.38 km² overlap
Danville-Georgetown
IUCN VOpen Space
1.23 km² overlap
Squak Mt/Tiger Mt
IUCN IIICorridor
1.08 km² overlap
Unknown
IUCN VPark
0.94 km² overlap
Evans Creek
IUCN VPreserve
0.86 km² overlap
Local Conservation Area
0.66 km² overlap
Upper Green River Watersh
IUCN Not AssignedWatershed
0.56 km² overlap
Anderson Log Cabin
IUCN VEnvironmental System
0.49 km² overlap
Park Pointe
IUCN VLocal Conservation Area
0.42 km² overlap
Middle Issaquah Creek
IUCN VNatural Area
0.36 km² overlap
Lake Youngs
IUCN VPark
0.35 km² overlap
Open Space
IUCN VLocal Conservation Area
0.31 km² overlap
Open Space
0.30 km² overlap
Public
IUCN VOpen Space
0.30 km² overlap
Somerset
IUCN VOpen Space
0.29 km² overlap
Natural Resources Conservation Area
0.28 km² overlap
Landsburg Reach
IUCN VNatural Area
0.26 km² overlap
Foothills At Issaquah
IUCN VOpen Space
0.25 km² overlap
China Creek
IUCN VOpen Space
0.23 km² overlap
Cedar River Natural Zone
IUCN VNatural Zone
0.23 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
8 354 distinct species · 5 927 393 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 Cedar River : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 70 interactions GloBI sur 4 types (connectance 11.8%, filtre Serrano α=0.2). 11 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°
9,6°C
Annual rain
1 414mm
Moisture idx (CMI)
0,36
Runoff
1 125mm/an
PET
800mm
AET
605mm
Mean slope
7,0°
Water table
351cm
Forest
68%
Crops
1%
Urban
53%
Protected
22%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)