HydroBASINS lev08 watershed · #7080528440
Bassin de Loyalhanna Creek
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 3 administrative regions : Indiana, Somerset, Westmoreland
Sub-basin area
779,8km²
Upstream area
779,8km²
Discharge
14,73m³/s
Mean elev.
460m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 777.9 km²99.6% of basin
- Somerset2.8 km²0.4% of basin
- 0.0 km²0.0% of basin
16 intersecting protected areas
Powdermill
IUCN VNature Reserve
6.36 km² overlap
Keystone
IUCN IIIState Park
4.73 km² overlap
Laurel Ridge
IUCN VState Park
4.14 km² overlap
Thomas Road Farm
IUCN VPrivate Conservation
3.73 km² overlap
WPC
IUCN VEasement
3.48 km² overlap
Linn Run
IUCN IIIState Park
2.28 km² overlap
Laurel Mountain
IUCN IIIState Park
1.99 km² overlap
Penguin Court
IUCN VPrivate Conservation
0.67 km² overlap
Marshall
IUCN VPrivate Conservation
0.31 km² overlap
7 more protected areassorted by overlap area
Furnace Woods
IUCN VNatural Area
0.29 km² overlap
Buffalo Nut
IUCN VSanctuary
0.26 km² overlap
Winnie Palmer
IUCN VNature Reserve
0.10 km² overlap
Pingor
IUCN VPrivate Conservation
0.01 km² overlap
Crozier
IUCN VPrivate Conservation
0.00 km² overlap
Neiman
IUCN VPrivate Conservation
0.00 km² overlap
Loyalhanna View
IUCN VPrivate Conservation
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 938 distinct species · 329 784 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Loyalhanna Creek : 19 espèces reliées par 66 interactions GloBI sur 3 types (connectance 14.2%, 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°
9,1°C
Annual rain
1 094mm
Moisture idx (CMI)
0,06
Runoff
596mm/an
PET
1 031mm
AET
822mm
Mean slope
6,0°
Water table
259cm
Forest
88%
Crops
13%
Urban
3%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)