HydroBASINS lev08 watershed · #7080365470
Bassin de Middle Branch Ontonagon 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 : Gogebic, Houghton, Iron, Ontonagon, Vilas
Sub-basin area
1 793,4km²
Upstream area
1 793,4km²
Discharge
36,94m³/s
Mean elev.
424m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- 754.3 km²41.9% of basin
- 467.8 km²26.0% of basin
- 410.5 km²22.8% of basin
- 165.4 km²9.2% of basin
- 0.1 km²0.0% of basin
5 intersecting protected areas
Ontonagon, Michigan
IUCN VWild and Scenic River
128.39 km² overlap
Sylvania
IUCN IbWilderness
52.80 km² overlap
Watershed
0.88 km² overlap
Baraga State Forest Area
IUCN VState Forest
0.82 km² overlap
The Conservation Fund
IUCN VConservation Easement
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 070 distinct species · 30 562 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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 Middle Branch Ontonagon River : 32 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 82 interactions GloBI sur 4 types (connectance 9.1%, filtre Serrano α=0.2). 11 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°
4,2°C
Annual rain
817mm
Moisture idx (CMI)
-0,04
Runoff
686mm/an
PET
853mm
AET
647mm
Mean slope
2,1°
Water table
81cm
Forest
91%
Crops
1%
Urban
0%
Protected
69%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)