HydroBASINS lev08 watershed · #7080325090
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
278,9km²
Upstream area
19 877km²
Discharge
273,18m³/s
Mean elev.
183m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
3 dept-equivalent regions (GADM L2)
- 158.6 km²56.7% of basin
- 93.7 km²33.5% of basin
- 27.5 km²9.8% of basin
4 intersecting protected areas
Marine Protected Area
134.25 km² overlap
Isle Royale
IUCN IINational Park
133.72 km² overlap
National Marine Conservation Area
92.41 km² overlap
Isle Royale
IUCN IbWilderness Area
25.76 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
480 distinct species · 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 Canada-US Great Lakes maritime boundary (Superior-Huron) : 31 espèces reliées par 43 interactions GloBI sur 3 types (connectance 6.1%, filtre Serrano α=0.2). 7 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°
2,8°C
Annual rain
755mm
Moisture idx (CMI)
0,03
Runoff
543mm/an
PET
732mm
AET
555mm
Mean slope
0,4°
Water table
6cm
Forest
5%
Crops
0%
Urban
0%
Protected
81%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)