HydroBASINS lev08 watershed · #7080519760
Bassin de 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 1 administrative regions : Trinity
Sub-basin area
473,6km²
Upstream area
3 808,3km²
Discharge
97,63m³/s
Mean elev.
965m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Trinity River1201 km²
- Bassin de North Fork Trinity River390 km²
1 dept-equivalent regions (GADM L2)
- Trinity474.2 km²100.0% of basin
4 intersecting protected areas
Trinity Alps
IUCN IbWilderness
138.91 km² overlap
Manzanita Creek
IUCN IaResearch Natural Area
30.06 km² overlap
Trinity, California
IUCN VWild and Scenic River
29.98 km² overlap
Trinity, California
IUCN VWild and Scenic River
6.59 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 131 distinct species · 10 246 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 Trinity River : 28 espèces reliées par 103 interactions GloBI sur 5 types (connectance 10.9%, 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°
10,1°C
Annual rain
1 134mm
Moisture idx (CMI)
-0,05
Runoff
927mm/an
PET
1 198mm
AET
620mm
Mean slope
21,8°
Water table
662cm
Forest
100%
Crops
0%
Urban
0%
Protected
36%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)