HydroBASINS lev08 watershed · #7080076950
Bassin · #7080076950
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 : Clark, Codington, Day, Hamlin
Sub-basin area
1 828,8km²
Upstream area
1 828,8km²
Discharge
0,25m³/s
Mean elev.
545m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- Clark1258.2 km²68.6% of basin
- 376.4 km²20.5% of basin
- 113.8 km²6.2% of basin
- 84.5 km²4.6% of basin
30 intersecting protected areas
Clark County
IUCN VWaterfowl Production Area
59.99 km² overlap
Watershed Protection
25.60 km² overlap
Codington County
IUCN VWaterfowl Production Area
20.78 km² overlap
Dry
IUCN VLake
19.17 km² overlap
Reserve Program
5.59 km² overlap
Terry Redlin
IUCN VState Wildlife Management Area
4.63 km² overlap
Long
IUCN VLake
4.29 km² overlap
Blythe
IUCN VState Wildlife Management Area
3.82 km² overlap
Watershed Protection
3.58 km² overlap
21 more protected areassorted by overlap area
Reserve Program
2.96 km² overlap
Stairs Slough
IUCN VState Wildlife Management Area
2.21 km² overlap
Lily
IUCN VState Wildlife Management Area
1.99 km² overlap
Fairferlick
IUCN VState Wildlife Management Area
1.76 km² overlap
Sherwood
IUCN VWildlife Management Area
1.60 km² overlap
Valberg-lamb
IUCN VState Wildlife Management Area
1.48 km² overlap
Watershed Protection
1.33 km² overlap
Rasmussen
IUCN VState Wildlife Management Area
1.16 km² overlap
Hamlin County
IUCN VWaterfowl Production Area
1.15 km² overlap
Reserve Program
1.14 km² overlap
State Wildlife Management Area
1.12 km² overlap
Reserve Program
1.10 km² overlap
Bochek
IUCN VState Wildlife Management Area
1.10 km² overlap
Warner
IUCN VLake
1.07 km² overlap
Clark County
IUCN VWaterfowl Production Area
1.01 km² overlap
Gilbert
IUCN VState Wildlife Management Area
0.96 km² overlap
Helgeson
IUCN VState Wildlife Management Area
0.93 km² overlap
Stewart
IUCN VState Wildlife Management Area
0.84 km² overlap
Reserve Program
0.74 km² overlap
Mckilligan
IUCN VState Wildlife Management Area
0.70 km² overlap
School Quarter
IUCN VState Wildlife Management Area
0.66 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
569 distinct species · 8 016 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 · #7080076950 : 18 espèces reliées par 98 interactions GloBI sur 4 types (connectance 21.1%, filtre Serrano α=0.2). 13 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°
6,1°C
Annual rain
546mm
Moisture idx (CMI)
-0,41
Runoff
12mm/an
PET
933mm
AET
470mm
Mean slope
0,7°
Water table
42cm
Forest
28%
Crops
63%
Urban
0%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)