HydroBASINS lev08 watershed · #7080325540
Bassin de Canada-US Great Lakes maritime boundary (Superior-Huron)
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 3 administrative regions across 2 countries : Keweenaw, Lake Superior
Sub-basin area
230,6km²
Upstream area
20 428,4km²
Discharge
282,82m³/s
Mean elev.
179m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
3 dept-equivalent regions (GADM L2)
- 179.4 km²77.6% of basin
- 48.1 km²20.8% of basin
- 3.8 km²1.6% of basin
4 intersecting protected areas
Marine Protected Area
174.38 km² overlap
Isle Royale
IUCN IINational Park
85.94 km² overlap
National Marine Conservation Area
45.49 km² overlap
Isle Royale
IUCN IbWilderness Area
3.44 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
948 distinct species · 4 837 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 Canada-US Great Lakes maritime boundary (Superior-Huron) : 24 espèces reliées par 85 interactions GloBI sur 4 types (connectance 11.5%, filtre Serrano α=0.2). 15 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°
2,7°C
Annual rain
763mm
Moisture idx (CMI)
0,05
Runoff
574mm/an
PET
722mm
AET
552mm
Mean slope
0,1°
Water table
2cm
Forest
0%
Crops
0%
Urban
0%
Protected
95%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)