HydroBASINS lev08 watershed · #2080545050
Bassin de Petite Veuse
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 : Drôme, Isère
Sub-basin area
657,5km²
Upstream area
657,5km²
Discharge
9,73m³/s
Mean elev.
422m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 571.1 km²86.7% of basin
- 88.0 km²13.3% of basin
79 communes (GADM L5)Available for FRA, RWA
- Viriville28.62 km²93% commune
- La Côte-Saint-André28.28 km²100% commune
- Saint-Sorlin-en-Valloire19.21 km²73% commune
- Saint-Étienne-de-Saint-Geoirs19.12 km²100% commune
- Saint-Pierre-de-Bressieux19.10 km²82% commune
- Saint-Siméon-de-Bressieux19.08 km²100% commune
- Lens-Lestang16.34 km²99% commune
- Izeaux15.51 km²100% commune
- Pajay14.80 km²100% commune
- Gillonnay14.28 km²100% commune
- Thodure14.24 km²100% commune
- Champier14.05 km²96% commune
- Saint-Hilaire-de-la-Côte13.84 km²100% commune
- Commelle13.67 km²96% commune
- Bévenais13.60 km²100% commune
- Pommier-de-Beaurepaire13.31 km²70% commune
- Anneyron13.24 km²36% commune
- Le Grand-Lemps13.17 km²100% commune
- Colombe12.67 km²97% commune
- Sillans12.60 km²100% commune
- Beaurepaire11.98 km²66% commune
- La Frette11.83 km²100% commune
- Penol11.43 km²100% commune
- Sardieu11.12 km²100% commune
- Mottier10.90 km²100% commune
- Faramans10.83 km²100% commune
- Bossieu10.78 km²77% commune
- Marcollin10.61 km²100% commune
- Marcilloles9.55 km²100% commune
- Nantoin9.43 km²100% commune
- Semons9.00 km²85% commune
- Épinouze8.99 km²78% commune
- La Forteresse8.84 km²92% commune
- Oyeu8.82 km²63% commune
- Beaufort8.73 km²100% commune
- Brézins8.26 km²100% commune
- Longechenal8.21 km²100% commune
- Lentiol7.57 km²98% commune
- Moras-en-Valloire7.51 km²91% commune
- Balbins7.48 km²100% commune
- Bizonnes7.46 km²64% commune
- Saint-Geoirs7.25 km²100% commune
- Saint-Paul-d'Izeaux7.25 km²100% commune
- Manthes7.08 km²100% commune
- Saint-Barthélemy6.91 km²90% commune
- Saint-Rambert-d'Albon6.91 km²51% commune
- Beaucroissant6.74 km²57% commune
- Saint-Michel-de-Saint-Geoirs6.45 km²95% commune
- Saint-Didier-de-Bizonnes6.41 km²88% commune
- Plan6.24 km²100% commune
- Arzay6.15 km²64% commune
- Lapeyrouse-Mornay6.10 km²52% commune
- Eydoche5.76 km²100% commune
- Bougé-Chambalud5.67 km²36% commune
- Marnans5.64 km²88% commune
- Ornacieux4.68 km²100% commune
- Châtenay4.56 km²100% commune
- Châbons4.27 km²23% commune
- Flachères4.12 km²85% commune
- Brion3.54 km²86% commune
- Rives2.88 km²26% commune
- Saint-Clair-sur-Galaure2.47 km²16% commune
- Le Grand-Serre1.85 km²7% commune
- Tullins1.57 km²5% commune
- Apprieu1.34 km²9% commune
- Châtonnay1.28 km²4% commune
- Quincieu1.24 km²26% commune
- Chanas1.22 km²11% commune
- Belmont1.01 km²16% commune
- Burcin0.88 km²13% commune
- Pisieu0.74 km²4% commune
- Hauterives0.73 km²2% commune
- Bressieux0.68 km²100% commune
- Eclose0.51 km²5% commune
- Roybon0.48 km²1% commune
- Biol0.28 km²2% commune
- Vatilieu0.07 km²1% commune
- Saint-Julien-de-l'Herms0.04 km²0% commune
- Cras0.00 km²0% commune
8 intersecting protected areas
Special Areas of Conservation (Habitats Directive)
8.05 km² overlap
Tourbière du Grand Lemps
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.13 km² overlap
Étang Du Grand-Lemps
IUCN IVNational Nature Reserve
0.47 km² overlap
Protected perimeter around a national nature reserve
0.41 km² overlap
Land acquired by a regional conservatory of natural areas
0.01 km² overlap
Land acquired by a regional conservatory of natural areas
0.01 km² overlap
Forest Managed Biological Reserve
0.00 km² overlap
Île de la Platière
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 382 distinct species · 248 837 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 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 Petite Veuse : 30 espèces reliées par 119 interactions GloBI sur 6 types (connectance 12.6%, filtre Serrano α=0.2). 14 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°
10,6°C
Annual rain
940mm
Moisture idx (CMI)
0,02
Runoff
467mm/an
PET
918mm
AET
701mm
Mean slope
3,8°
Water table
221cm
Forest
14%
Crops
49%
Urban
2%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)