HydroBASINS lev08 watershed · #7080342790
Bassin de Hollow Rock Creek
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 : Cook, Lake Superior
Sub-basin area
870,8km²
Upstream area
870,8km²
Discharge
15,14m³/s
Mean elev.
190m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 620.6 km²71.1% of basin
- Lake Superior185.8 km²21.3% of basin
- Cook66.9 km²7.7% of basin
3 intersecting protected areas
Isle Royale
IUCN IINational Park
40.86 km² overlap
Marine Protected Area
40.08 km² overlap
Grand Portage
IUCN IIINational Monument
0.73 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 618 distinct species · 14 400 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 47 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 Hollow Rock Creek : 34 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 120 interactions GloBI sur 4 types (connectance 10.6%, filtre Serrano α=0.2). 14 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°
3,7°C
Annual rain
736mm
Moisture idx (CMI)
-0,06
Runoff
577mm/an
PET
780mm
AET
585mm
Mean slope
0,4°
Water table
9cm
Forest
5%
Crops
0%
Urban
0%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)