HydroBASINS lev08 watershed · #7080423690
Bassin de Mississippi 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 4 administrative regions : Dakota, Goodhue, Pierce, Washington
Sub-basin area
208,6km²
Upstream area
116 029,5km²
Discharge
626,06m³/s
Mean elev.
275m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Willow River1955 km²
- Bassin de Mississippi River640 km²
4 dept-equivalent regions (GADM L2)
- Pierce170.8 km²81.7% of basin
- 32.2 km²15.4% of basin
- 5.8 km²2.8% of basin
- Washington0.3 km²0.1% of basin
2 intersecting protected areas
Gores Pool #3
IUCN VState Wildlife Management Area
18.38 km² overlap
Big Stone County
IUCN VWaterfowl Production Area
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
557 distinct species · 12 269 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 Mississippi River : 33 espèces reliées par 82 interactions GloBI sur 4 types (connectance 10.5%, filtre Serrano α=0.2). 7 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°
7,0°C
Annual rain
776mm
Moisture idx (CMI)
-0,17
Runoff
250mm/an
PET
937mm
AET
657mm
Mean slope
2,6°
Water table
180cm
Forest
23%
Crops
52%
Urban
0%
Protected
8%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)