HydroBASINS lev08 watershed · #7080429560
Bassin de Eau Galle 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 : Buffalo, Dunn, Pepin, Pierce, Saint Croix
Sub-basin area
1 286,2km²
Upstream area
24 249km²
Discharge
244,33m³/s
Mean elev.
302m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Chippewa River1159 km²
- Bassin de Red Cedar River596 km²
5 dept-equivalent regions (GADM L2)
- 351.9 km²27.3% of basin
- Pierce325.1 km²25.2% of basin
- Dunn264.3 km²20.5% of basin
- 190.2 km²14.8% of basin
- Buffalo157.5 km²12.2% of basin
17 intersecting protected areas
Tiffany Wildlife Area 7
IUCN VWildlife Area
36.62 km² overlap
Nine Mile Island
IUCN VState Natural Area
6.52 km² overlap
Dunnville
IUCN VWildlife Area
3.74 km² overlap
Reserve Program
3.09 km² overlap
Wildlife And Fish Refuge
2.62 km² overlap
Wetland of International Importance (Ramsar Site)
2.62 km² overlap
Big Swamp
IUCN VWildlife Area
2.32 km² overlap
Nature Preserve
2.26 km² overlap
Lower Chippewa River
IUCN VState Natural Area
1.36 km² overlap
8 more protected areassorted by overlap area
Reserve Program
1.22 km² overlap
Reserve Program
0.66 km² overlap
Stream Bank Easement Program
IUCN Not AssignedEasement
0.42 km² overlap
Watershed Protection
0.38 km² overlap
Conservation Easement
0.10 km² overlap
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Dunn, WI
IUCN Not AssignedConservation Easement
0.10 km² overlap
Conservation Easement
0.09 km² overlap
Natural Area
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 398 distinct species · 101 604 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 Eau Galle River : 26 espèces reliées par 73 interactions GloBI sur 4 types (connectance 11.6%, 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°
6,8°C
Annual rain
807mm
Moisture idx (CMI)
-0,14
Runoff
268mm/an
PET
943mm
AET
683mm
Mean slope
3,8°
Water table
164cm
Forest
21%
Crops
35%
Urban
0%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)