HydroBASINS lev08 watershed · #7080624010
Bassin de North Fork Holston 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 9 administrative regions : Bland, Hawkins, Russell, Scott, Smyth +4
Sub-basin area
1 869km²
Upstream area
1 869km²
Discharge
34,92m³/s
Mean elev.
682m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
9 dept-equivalent regions (GADM L2)
- Washington655.7 km²35.1% of basin
- 379.9 km²20.3% of basin
- Scott373.4 km²20.0% of basin
- Russell136.9 km²7.3% of basin
- Tazewell131.7 km²7.0% of basin
- 122.1 km²6.5% of basin
- 54.5 km²2.9% of basin
- Sullivan14.3 km²0.8% of basin
1 moreFull L2 list
- Wythe1.2 km² · 0.1%
19 intersecting protected areas
Clinch Mountain
IUCN VWildlife Management Area
90.27 km² overlap
Hidden Valley
IUCN VWildlife Management Area
23.35 km² overlap
Beartown
IUCN IbWilderness
19.08 km² overlap
Garden Mountain
IUCN IbWilderness
13.16 km² overlap
Lynn Camp Creek
IUCN IbWilderness Study Area
13.05 km² overlap
Lick Creek
IUCN VState Natural Area
3.00 km² overlap
Redrock Mtn
IUCN VState Natural Area Preserve
2.59 km² overlap
The Channels
IUCN VState Natural Area Preserve
2.33 km² overlap
Smy-Vof-4031
IUCN Not AssignedConservation Easement
1.29 km² overlap
10 more protected areassorted by overlap area
The Nature Conservancy
IUCN VEasement
1.28 km² overlap
Smy-03984
IUCN Not AssignedConservation Easement
0.81 km² overlap
Hungry Mother
IUCN IIIState Park
0.31 km² overlap
Reserve Program
0.29 km² overlap
Hunting Camp Creek
IUCN IbWilderness
0.07 km² overlap
Conservation Easement
0.07 km² overlap
Conservation Easement
0.06 km² overlap
Reserve Program
0.04 km² overlap
Barns Chapel
IUCN VPrivate Conservation Land
0.02 km² overlap
Freeman / Kerney Island
IUCN VPrivate Conservation Land
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 113 distinct species · 116 872 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Fork Holston River : 27 espèces reliées par 74 interactions GloBI sur 3 types (connectance 11.7%, filtre Serrano α=0.2). 9 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°
11,6°C
Annual rain
1 139mm
Moisture idx (CMI)
-0,01
Runoff
560mm/an
PET
1 150mm
AET
895mm
Mean slope
10,7°
Water table
454cm
Forest
91%
Crops
16%
Urban
0%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)