HydroBASINS lev08 watershed · #7080553940
Bassin de North Branch Potomac 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 : Garrett, Grant, Mineral, Preston, Tucker
Sub-basin area
722,9km²
Upstream area
722,9km²
Discharge
11,77m³/s
Mean elev.
824m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- Grant306.7 km²42.4% of basin
- 262.3 km²36.2% of basin
- Mineral137.0 km²18.9% of basin
- 13.7 km²1.9% of basin
- 3.9 km²0.5% of basin
8 intersecting protected areas
Allegheny
IUCN VWildlife Management Area
11.60 km² overlap
Bear Rocks
IUCN VPreserve
0.18 km² overlap
Dolly Sods
IUCN IbWilderness
0.14 km² overlap
Potomac
IUCN VWildlife Management Area
0.14 km² overlap
Canaan Valley
IUCN IVNational Wildlife Refuge
0.09 km² overlap
Maryland Environmental Trust Easement #37
IUCN Not AssignedEasement
0.06 km² overlap
Blackwater
IUCN VWildlife Management Area
0.03 km² overlap
Fairfax Stone
IUCN IIIState Park
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 482 distinct species · 69 015 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 North Branch Potomac River : 30 espèces reliées par 73 interactions GloBI sur 4 types (connectance 8.5%, filtre Serrano α=0.2). 12 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°
8,1°C
Annual rain
1 200mm
Moisture idx (CMI)
0,17
Runoff
519mm/an
PET
986mm
AET
839mm
Mean slope
6,8°
Water table
365cm
Forest
96%
Crops
8%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)