HydroBASINS lev08 watershed · #7080569640
Bassin de Missouri 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 5 administrative regions : Franklin, Madison, Saint Charles, Saint Louis, Warren
Sub-basin area
1 480,2km²
Upstream area
1 326 743,4km²
Discharge
2 933,59m³/s
Mean elev.
175m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 13 basins
- Bassin · #70800753102295 km²
- Bassin · #70800754602158 km²
- Bassin de Wood River1871 km²
- Bassin de Rushlake Creek1588 km²
- Bassin · #70800757501584 km²
- + 8 more
5 dept-equivalent regions (GADM L2)
- Saint Louis583.6 km²39.4% of basin
- Saint Charles529.8 km²35.8% of basin
- Franklin239.1 km²16.1% of basin
- Warren128.8 km²8.7% of basin
- Madison0.0 km²0.0% of basin
30 intersecting protected areas
Weldon Spring
IUCN VConservation Area
30.52 km² overlap
Howell Island
IUCN VConservation Area
10.95 km² overlap
Pelican Island Na
IUCN VState Conservation Area
9.59 km² overlap
Dr. Edmund A. Babler Memorial
IUCN IIIState Park
9.28 km² overlap
Columbia Bottom Ca
IUCN VState Conservation Area
8.62 km² overlap
Pelican Island
IUCN VNatural Area
7.68 km² overlap
Usace-Cora Island
IUCN VLocal Conservation Area
5.90 km² overlap
Saint Stanislaus
IUCN VConservation Area
3.38 km² overlap
Big Muddy National Fish And
IUCN IVWildlife Refuge
3.03 km² overlap
21 more protected areassorted by overlap area
Reserve Program
2.59 km² overlap
Jones-Confluence Point
IUCN IIIState Park
2.07 km² overlap
State Park
1.90 km² overlap
Weldon Spring Hollow
IUCN VNatural Area
1.48 km² overlap
Bangert Memorial Wa
IUCN IIILocal Park
0.83 km² overlap
Conservation Area
0.73 km² overlap
Engelmann Woods
IUCN VNatural Area
0.61 km² overlap
Mdc Caldwell Wa
IUCN VState Conservation Area
0.55 km² overlap
Wildlife Area
0.53 km² overlap
Caldwell Memorial
IUCN VWildlife Area
0.50 km² overlap
Beckemeier (August G.)
IUCN VConservation Area
0.21 km² overlap
Reserve Program
0.21 km² overlap
Beckemeier
IUCN IIIConservation Area
0.19 km² overlap
Mdc Pelican Island
IUCN VAccess
0.17 km² overlap
Heisel Property
IUCN Not AssignedConservation Easement
0.15 km² overlap
National Wildlife Refuge
0.13 km² overlap
Blanchette Landing
IUCN VAccess
0.09 km² overlap
Babler Southwoods Hollow
IUCN VNatural Area
0.08 km² overlap
Mobot Shaw
IUCN VNature Preserve
0.05 km² overlap
Hickory Woods
IUCN VConservation Area
0.04 km² overlap
Washington Riverfront
IUCN VOpen Space
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 411 distinct species · 826 295 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Missouri River : 26 espèces reliées par 81 interactions GloBI sur 3 types (connectance 12.2%, 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°
12,5°C
Annual rain
973mm
Moisture idx (CMI)
-0,17
Runoff
228mm/an
PET
1 170mm
AET
822mm
Mean slope
2,4°
Water table
159cm
Forest
37%
Crops
25%
Urban
27%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)