HydroBASINS lev08 watershed · #7080416530
Bassin de Willow 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 : Codington, Deuel, Grant
Sub-basin area
307,5km²
Upstream area
307,5km²
Discharge
0,92m³/s
Mean elev.
580m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 188.8 km²61.3% of basin
- Deuel80.1 km²26.0% of basin
- Grant39.3 km²12.8% of basin
10 intersecting protected areas
Codington County
IUCN VWaterfowl Production Area
6.95 km² overlap
Grant County
IUCN VWaterfowl Production Area
6.76 km² overlap
Deuel County
IUCN VWaterfowl Production Area
5.82 km² overlap
Round Bullhead
IUCN VState Wildlife Management Area
4.65 km² overlap
Grant County
IUCN VWaterfowl Production Area
2.49 km² overlap
Reserve Program
2.07 km² overlap
Grant County
IUCN VWaterfowl Production Area
1.03 km² overlap
Troy
IUCN VLake
0.48 km² overlap
Bjerke
IUCN VWildlife Management Area
0.46 km² overlap
1 more protected areassorted by overlap area
NPLT
IUCN Not AssignedEasement
0.06 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
517 distinct species · 2 895 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Willow Creek : 22 espèces reliées par 137 interactions GloBI sur 4 types (connectance 19.5%, 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°
5,7°C
Annual rain
585mm
Moisture idx (CMI)
-0,36
Runoff
84mm/an
PET
922mm
AET
502mm
Mean slope
1,0°
Water table
72cm
Forest
2%
Crops
61%
Urban
1%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)