HydroBASINS lev08 watershed · #7080642310
Bassin de Johns 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 : Avery, Burke, Caldwell, Watauga
Sub-basin area
557km²
Upstream area
557km²
Discharge
10,17m³/s
Mean elev.
633m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- Caldwell353.0 km²63.4% of basin
- 122.2 km²21.9% of basin
- Burke67.1 km²12.1% of basin
- 14.7 km²2.6% of basin
11 intersecting protected areas
Wild and Scenic River
28.40 km² overlap
Harper Creek
IUCN IbWilderness Study Area
27.53 km² overlap
Lost Cove
IUCN IbWilderness Study Area
23.08 km² overlap
Grandfather Mountain
IUCN IIIState Park
5.23 km² overlap
Conservation Fund
IUCN VPreserve
2.99 km² overlap
Grandfather Mountain
IUCN VEasement
2.99 km² overlap
Grandfather Mountain
IUCN VEasement
2.05 km² overlap
Wilson Creek Slopes
IUCN VEasement
0.78 km² overlap
North American Land Trust
IUCN Not AssignedEasement
0.08 km² overlap
2 more protected areassorted by overlap area
Sim's
IUCN Not AssignedPond
0.00 km² overlap
Boone Fork Farm
IUCN Not AssignedConservation Easement
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 568 distinct species · 68 561 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 46 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 Johns River : 31 espèces reliées par 91 interactions GloBI sur 3 types (connectance 8.4%, filtre Serrano α=0.2). 16 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°
12,4°C
Annual rain
1 327mm
Moisture idx (CMI)
0,10
Runoff
588mm/an
PET
1 189mm
AET
980mm
Mean slope
10,4°
Water table
398cm
Forest
100%
Crops
2%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)