HydroBASINS lev08 watershed · #7080505710
Bassin de Two Mile Run
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 1 administrative regions : Venango
Sub-basin area
95,4km²
Upstream area
12 203,5km²
Discharge
228,47m³/s
Mean elev.
422m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de East Branch Oil Creek844 km²
- Bassin de Allegheny River441 km²
1 dept-equivalent regions (GADM L2)
- 95.6 km²100.0% of basin
1 intersecting protected areas
Allegheny, Pennsylvania
IUCN VWild and Scenic River
2.37 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
657 distinct species · 20 496 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Two Mile Run : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 74 interactions GloBI sur 3 types (connectance 10.0%, 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°
8,2°C
Annual rain
1 114mm
Moisture idx (CMI)
0,10
Runoff
584mm/an
PET
1 005mm
AET
814mm
Mean slope
6,2°
Water table
398cm
Forest
89%
Crops
9%
Urban
5%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)