HydroBASINS lev08 watershed · #7080706780
Bassin de West Fork Trinity 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 2 administrative regions : Dallas, Tarrant
Sub-basin area
459,5km²
Upstream area
8 195,3km²
Discharge
31,24m³/s
Mean elev.
178m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Village Creek500 km²
- Bassin de Big Fossil Creek475 km²
2 dept-equivalent regions (GADM L2)
- 359.6 km²78.3% of basin
- Dallas99.6 km²21.7% of basin
7 intersecting protected areas
River Legacy
IUCN VPark
3.05 km² overlap
Julia Burgen
IUCN VPark
0.26 km² overlap
Colleyville
IUCN VNature Center
0.17 km² overlap
Crystal Canyon
IUCN VNatural Area
0.15 km² overlap
Preserve
0.11 km² overlap
Lakes At Matlock
IUCN VCity Lake
0.02 km² overlap
Willis Coves
IUCN VPreserve
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 580 distinct species · 987 853 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 West Fork Trinity River : 31 espèces reliées par 83 interactions GloBI sur 3 types (connectance 10.6%, 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°
18,5°C
Annual rain
876mm
Moisture idx (CMI)
-0,37
Runoff
174mm/an
PET
1 392mm
AET
741mm
Mean slope
0,9°
Water table
117cm
Forest
31%
Crops
5%
Urban
99%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)