HydroBASINS lev08 watershed · #7080464510
Bassin de Grand 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 2 administrative regions : Muskegon, Ottawa
Sub-basin area
278,3km²
Upstream area
14 302,1km²
Discharge
130,66m³/s
Mean elev.
199m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Grand River732 km²
- Bassin de Sand Creek165 km²
2 dept-equivalent regions (GADM L2)
- Ottawa273.6 km²98.1% of basin
- 5.2 km²1.9% of basin
19 intersecting protected areas
Bakale Wildlife Unit of Bass River State
IUCN Not AssignedRecreation Area
2.47 km² overlap
Grand River
IUCN VOpen Space
1.12 km² overlap
Watershed Protection
0.42 km² overlap
Kuits Bayou
IUCN VLocal Conservation Area
0.31 km² overlap
99-09-0011-P
IUCN Not AssignedConservation Easement
0.12 km² overlap
00-70-0177-P
IUCN Not AssignedConservation Easement
0.10 km² overlap
03-70-0226-P
IUCN Not AssignedConservation Easement
0.05 km² overlap
06-70-0025
IUCN Not AssignedConservation Easement
0.04 km² overlap
04-70-0175-P
IUCN Not AssignedConservation Easement
0.03 km² overlap
10 more protected areassorted by overlap area
06-70-0153
IUCN Not AssignedConservation Easement
0.03 km² overlap
07-70-0086
IUCN Not AssignedConservation Easement
0.03 km² overlap
08-70-0205
IUCN Not AssignedConservation Easement
0.02 km² overlap
05-70-0158
IUCN Not AssignedConservation Easement
0.02 km² overlap
06-70-0124
IUCN Not AssignedConservation Easement
0.02 km² overlap
05-70-0028-P
IUCN Not AssignedConservation Easement
0.02 km² overlap
01-70-0079
IUCN Not AssignedConservation Easement
0.01 km² overlap
11-70-0030
IUCN Not AssignedConservation Easement
0.01 km² overlap
14-70-0145
IUCN Not AssignedConservation Easement
0.00 km² overlap
07-70-0143
IUCN Not AssignedConservation Easement
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 591 distinct species · 74 941 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Grand River : 30 espèces reliées par 73 interactions GloBI sur 4 types (connectance 10.4%, filtre Serrano α=0.2). 8 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°
8,6°C
Annual rain
874mm
Moisture idx (CMI)
-0,06
Runoff
281mm/an
PET
930mm
AET
688mm
Mean slope
0,7°
Water table
59cm
Forest
16%
Crops
39%
Urban
7%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)