HydroBASINS lev08 watershed · #7080388730
Bassin de Salmon Creek
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 : Clark, Columbia, Multnomah
Sub-basin area
488,2km²
Upstream area
639 661,8km²
Discharge
7 027,36m³/s
Mean elev.
91m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Columbia River902 km²
- Bassin de Willamette River348 km²
3 dept-equivalent regions (GADM L2)
- Clark453.7 km²92.7% of basin
- 31.7 km²6.5% of basin
- Columbia4.0 km²0.8% of basin
19 intersecting protected areas
Ridgefield
IUCN IVNational Wildlife Refuge
20.20 km² overlap
Wildlife Area Complex
9.63 km² overlap
Sauvie Island
IUCN VWildlife Area
5.31 km² overlap
Lake
1.03 km² overlap
Flume Creek
IUCN VHabitat Area
0.63 km² overlap
National Wildlife Refuge
0.54 km² overlap
US-WA-222-1
IUCN Not AssignedMitigation Bank
0.51 km² overlap
Greenway
0.50 km² overlap
Remy Property
IUCN VLocal Conservation Area
0.32 km² overlap
10 more protected areassorted by overlap area
Meadowbrook Marsh Urban
IUCN VOpen Space
0.21 km² overlap
Whipple Creek Urban
IUCN VWildlife Habitat
0.16 km² overlap
Meadowbrook North
IUCN VLocal Conservation Area
0.14 km² overlap
Lake
0.13 km² overlap
PCON86
IUCN VLocal Land Trust
0.08 km² overlap
Columbia Land Trust
IUCN VLocal Land Trust
0.05 km² overlap
Cougar Creek
IUCN VGreenway
0.04 km² overlap
Tranquility
IUCN VPark
0.03 km² overlap
Reserve Program
0.01 km² overlap
Cedar
IUCN VTrails Park
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 612 distinct species · 1 170 566 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Salmon Creek : 20 espèces reliées par 62 interactions GloBI sur 4 types (connectance 14.3%, 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°
10,9°C
Annual rain
1 299mm
Moisture idx (CMI)
0,23
Runoff
1 248mm/an
PET
956mm
AET
645mm
Mean slope
2,3°
Water table
109cm
Forest
26%
Crops
16%
Urban
29%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)