HydroBASINS lev08 watershed · #7080578000
Bassin de Big 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 6 administrative regions : Franklin, Iron, Jefferson, Saint Francois, Sainte Genevieve +1
Sub-basin area
2 519,2km²
Upstream area
2 519,4km²
Discharge
18,72m³/s
Mean elev.
268m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
6 dept-equivalent regions (GADM L2)
- Washington1126.0 km²44.7% of basin
- Jefferson615.4 km²24.4% of basin
- 484.1 km²19.2% of basin
- Iron191.9 km²7.6% of basin
- 79.9 km²3.2% of basin
- Franklin23.4 km²0.9% of basin
25 intersecting protected areas
Saint Joe
IUCN VState Park
22.67 km² overlap
Buford Mountain
IUCN VConservation Area
13.53 km² overlap
Saint Francois
IUCN IIIState Park
10.24 km² overlap
Washington
IUCN IIIState Park
7.22 km² overlap
Pea Ridge
IUCN VConservation Area
6.80 km² overlap
Hughes Mountain
IUCN VNatural Area
1.86 km² overlap
Bootleg
IUCN VAccess
1.17 km² overlap
Valley View Glades
IUCN VNatural Area
0.86 km² overlap
Young
IUCN VConservation Area
0.34 km² overlap
16 more protected areassorted by overlap area
Potosi Towersite
IUCN VState Conservation Area or Park
0.33 km² overlap
Merrill Horse
IUCN VAccess
0.32 km² overlap
Coonville Creek
IUCN VNatural Area
0.26 km² overlap
Natural Area
0.25 km² overlap
Kingston
IUCN VAccess
0.23 km² overlap
Missouri Mines
IUCN IIIState Historic Site
0.15 km² overlap
Labarque Creek
IUCN VConservation Area
0.15 km² overlap
Bell Mountain
IUCN IbWilderness
0.11 km² overlap
Hickory Canyons
IUCN VNatural Area
0.08 km² overlap
French Village Towersite
IUCN VState Conservation Area or Park
0.05 km² overlap
County
IUCN VOpen Space
0.03 km² overlap
Leadwood
IUCN VAccess
0.03 km² overlap
High Point Towersite
IUCN VState Conservation Area or Park
0.02 km² overlap
Mammoth
IUCN VAccess
0.02 km² overlap
Washington Towersite
IUCN VState Conservation Area or Park
0.01 km² overlap
Brown's Ford
IUCN VAccess
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 876 distinct species · 219 968 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 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 Big River : 33 espèces reliées par 78 interactions GloBI sur 4 types (connectance 8.6%, 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°
12,5°C
Annual rain
1 051mm
Moisture idx (CMI)
-0,13
Runoff
246mm/an
PET
1 215mm
AET
878mm
Mean slope
3,3°
Water table
234cm
Forest
84%
Crops
16%
Urban
1%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)