HydroBASINS lev08 watershed · #7080585240
Bassin de Putah Creek
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 6 administrative regions : Lake, Napa, Sacramento, Solano, Sonoma +1
Sub-basin area
3 263,2km²
Upstream area
3 263,2km²
Discharge
36,37m³/s
Mean elev.
216m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
6 dept-equivalent regions (GADM L2)
- 1203.7 km²36.9% of basin
- 936.7 km²28.7% of basin
- 547.8 km²16.8% of basin
- Lake541.5 km²16.6% of basin
- 33.7 km²1.0% of basin
- 2.2 km²0.1% of basin
30 intersecting protected areas
Berryessa Snow Mountain
IUCN VNational Monument
294.06 km² overlap
Berryessa Snow Mountain
IUCN VNational Monument
294.06 km² overlap
Knoxville
IUCN VWildlife Area
83.70 km² overlap
Yolo Bypass
IUCN VWildlife Area
66.46 km² overlap
Bobcat Ranch
IUCN VPrivate Conservation
27.68 km² overlap
Cedar Roughs
IUCN IbWilderness Area
26.10 km² overlap
McLaughlin
IUCN Not AssignedReserve
10.61 km² overlap
Reserve Program
9.01 km² overlap
Quail Ridge
IUCN VReserve
8.47 km² overlap
21 more protected areassorted by overlap area
North Central Valley
IUCN VWildlife Management Area
8.40 km² overlap
Conservation
IUCN Not AssignedEasement
7.81 km² overlap
Reserve Program
7.73 km² overlap
Lake Berryessa
IUCN VWildlife Area
7.25 km² overlap
Jepson Prairie
IUCN VReserve
6.36 km² overlap
Blue Ridge
IUCN Not AssignedConservation Easement
5.90 km² overlap
Calhoun Cut
IUCN VEcological Reserve
4.72 km² overlap
Wilcox Ranch
IUCN VPrivate Conservation
4.58 km² overlap
Delta
IUCN VEasement
4.45 km² overlap
Vacaville-Dixon
IUCN Not AssignedGreenbelt
4.06 km² overlap
North Delta Fish Conservation B
IUCN Not AssignedConservation Easement
3.28 km² overlap
Wildlands Inc
IUCN VPrivate Conservation
3.27 km² overlap
Dunn-Wildlake Ranch
IUCN VPreserve
3.17 km² overlap
Wantrup
IUCN VWildlife Sanctuary
2.83 km² overlap
Putah Creek
IUCN VWildlife Area
2.68 km² overlap
Stebbins Cold Canyon
IUCN VReserve
2.61 km² overlap
Valley Glen
IUCN Not AssignedConservation Easement
2.58 km² overlap
Cedar Roughs
IUCN VWildlife Area
1.69 km² overlap
Cleary
IUCN VReserve
1.64 km² overlap
Pope Ranch
IUCN Not AssignedConservation Easement
1.61 km² overlap
Sutro Ranch
IUCN VPrivate Conservation
1.51 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
6 682 distinct species · 1 935 134 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 Putah Creek : 20 espèces reliées par 74 interactions GloBI sur 3 types (connectance 18.2%, 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°
15,0°C
Annual rain
668mm
Moisture idx (CMI)
-0,51
Runoff
301mm/an
PET
1 378mm
AET
501mm
Mean slope
5,6°
Water table
239cm
Forest
59%
Crops
33%
Urban
3%
Protected
7%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)