HydroBASINS lev08 watershed · #7080422380
Bassin de North Branch Au Sable 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 4 administrative regions : Crawford, Montmorency, Oscoda, Otsego
Sub-basin area
962,9km²
Upstream area
963km²
Discharge
7,14m³/s
Mean elev.
382m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 447.1 km²46.3% of basin
- 206.1 km²21.4% of basin
- Crawford198.4 km²20.6% of basin
- 113.4 km²11.8% of basin
23 intersecting protected areas
State Forest
284.31 km² overlap
Wildlife Habitat Management Area
40.07 km² overlap
State Forest
27.41 km² overlap
Lake
23.94 km² overlap
Wildlife Habitat Management Area
17.94 km² overlap
Wildlife Habitat Management Area
8.89 km² overlap
Wildlife Habitat Management Area
8.76 km² overlap
Wildlife Habitat Management Area
7.57 km² overlap
Kirtlands Warbler
IUCN VWildlife Management Area
5.58 km² overlap
14 more protected areassorted by overlap area
Ochs
IUCN Not AssignedEasement
1.14 km² overlap
Big Creek
IUCN Not AssignedEasement
0.59 km² overlap
Kassuba Trust
IUCN Not AssignedConservation Easement
0.42 km² overlap
Qua
IUCN Not AssignedEasement
0.33 km² overlap
Albert Miller Trust
IUCN Not AssignedConservation Easement
0.26 km² overlap
Neumann
IUCN Not AssignedConservation Easement
0.09 km² overlap
Duncanson
IUCN Not AssignedEasement
0.09 km² overlap
Conners Marsh Flooding
IUCN VState Wildlife Management Area
0.05 km² overlap
Fox
IUCN Not AssignedEasement
0.03 km² overlap
Big
IUCN VLake
0.03 km² overlap
Big Wolf Lake Easement Parcel 940-00
IUCN Not AssignedEasement
0.03 km² overlap
Big Wolf Lake Easement Parcel 240-03
IUCN Not AssignedEasement
0.01 km² overlap
Big Wolf Lake Parcel 240-01
IUCN Not AssignedLake
0.01 km² overlap
Big Wolf Lake Easement Parcel A
IUCN Not AssignedEasement
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 269 distinct species · 59 422 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 North Branch Au Sable River : 22 espèces reliées par 70 interactions GloBI sur 4 types (connectance 14.1%, filtre Serrano α=0.2). 10 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°
5,6°C
Annual rain
777mm
Moisture idx (CMI)
-0,13
Runoff
224mm/an
PET
898mm
AET
642mm
Mean slope
1,1°
Water table
97cm
Forest
84%
Crops
3%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)