HydroBASINS lev08 watershed · #7080687750
Bassin de Great Pee Dee 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 : Florence, Georgetown, Marion, Williamsburg
Sub-basin area
287,1km²
Upstream area
28 374,6km²
Discharge
383,11m³/s
Mean elev.
4m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Great Pee Dee River718 km²
- Bassin de Muddy Creek96 km²
4 dept-equivalent regions (GADM L2)
- 134.0 km²46.7% of basin
- Marion89.9 km²31.3% of basin
- 46.9 km²16.3% of basin
- 16.2 km²5.7% of basin
7 intersecting protected areas
Woodbury
IUCN VWildlife Management Area
79.40 km² overlap
Us-Sc-4-58
IUCN Not AssignedConservation Easement
7.38 km² overlap
Lower Rio Grande Valley
IUCN VNational Wildlife Refuge
1.83 km² overlap
Us-Sc-4-15
IUCN Not AssignedConservation Easement
1.34 km² overlap
Reserve Program
1.11 km² overlap
Reserve Program
0.73 km² overlap
Kyle Daniel Tract
IUCN Not AssignedConservation Easement
0.67 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
442 distinct species · 2 521 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 44 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 Great Pee Dee River : 34 espèces reliées par 83 interactions GloBI sur 4 types (connectance 8.8%, 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°
17,4°C
Annual rain
1 278mm
Moisture idx (CMI)
-0,06
Runoff
450mm/an
PET
1 361mm
AET
1 066mm
Mean slope
0,1°
Water table
6cm
Forest
84%
Crops
11%
Urban
0%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)