HydroBASINS lev08 watershed · #7080552690

Bassin de South 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 4 administrative regions : Grant, Hampshire, Hardy, Mineral

Pfafstetter: 73180901

Sub-basin area

768,6km²

Upstream area

3 869,7km²

Discharge

46,01m³/s

Mean elev.

376m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Potomac River1355 km²

▲ Receives from 2 basins

Bassin de South Fork South Branch Potomac River767 km²
Bassin de South Branch Potomac River131 km²

4 dept-equivalent regions (GADM L2)

Hampshire
West Virginia · United States
468.4 km²
60.9% of basin
Hardy
West Virginia · United States
296.9 km²
38.6% of basin
Mineral
West Virginia · United States
2.2 km²
0.3% of basin
Grant
West Virginia · United States
1.8 km²
0.2% of basin

8 intersecting protected areas

Nathaniel Mountain
IUCN V
Wildlife Management Area
35.98 km² overlap
White Horse Mountain
IUCN V
Wildlife Management Area
5.60 km² overlap
South Branch
IUCN V
Wildlife Management Area
5.12 km² overlap
Potomac Conservancy Easement 73
IUCN Not Assigned
Easement
1.05 km² overlap
Fort Mill Ridge
IUCN V
Wildlife Management Area
0.92 km² overlap
Rock Dome
IUCN V
Preserve
0.03 km² overlap
Grassland Reserve Program (GRP), Hampshire, WV
IUCN V
Reserve Program
0.01 km² overlap
Chesapeake and Ohio Canal
IUCN V
National Historical Park
0.00 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

1 489 distinct species · 26 821 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 35 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).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de South Branch Potomac River : 24 espèces reliées par 70 interactions GloBI sur 4 types (connectance 11.1%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.111

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

10,5°C

Annual rain

929mm

Moisture idx (CMI)

-0,17

Runoff

355mm/an

PET

1 121mm

AET

777mm

Mean slope

8,5°

Water table

405cm

Forest

98%

Crops

19%

Urban

Protected

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)