HydroBASINS lev08 watershed · #2080550310
Bassin de l'Isère
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 : Isère
Sub-basin area
880,2km²
Upstream area
10 251,9km²
Discharge
160,48m³/s
Mean elev.
578m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de l'Isère594 km²
- Bassin de la Gresse246 km²
1 dept-equivalent regions (GADM L2)
- 882.2 km²100.0% of basin
104 communes (GADM L5)Available for FRA, RWA
- Voreppe28.81 km²100% commune
- Tullins28.19 km²95% commune
- Voiron20.93 km²95% commune
- Engins20.41 km²97% commune
- Moirans20.39 km²100% commune
- Lans-en-Vercors20.34 km²52% commune
- Proveysieux20.22 km²100% commune
- Saint-Quentin-sur-Isère19.70 km²100% commune
- Quaix-en-Chartreuse18.38 km²100% commune
- Varacieux17.95 km²99% commune
- La Rivière17.91 km²100% commune
- Saint-Vérand17.53 km²100% commune
- Saint-Romans17.02 km²100% commune
- Noyarey16.48 km²100% commune
- Izeron16.18 km²97% commune
- Vinay15.95 km²100% commune
- Apprieu14.31 km²91% commune
- Malleval-en-Vercors14.29 km²100% commune
- Montaud14.12 km²100% commune
- Saint-Gervais13.92 km²100% commune
- Poliénas13.80 km²100% commune
- Sassenage13.59 km²100% commune
- Saint-Étienne-de-Crossey13.47 km²100% commune
- Serre-Nerpol12.96 km²100% commune
- Veurey-Voroize12.92 km²100% commune
- Cognin-les-Gorges12.41 km²100% commune
- La Buisse12.02 km²100% commune
- Rovon11.82 km²100% commune
- Saint-Aupre11.59 km²97% commune
- Paladru11.56 km²94% commune
- Le Sappey-en-Chartreuse11.19 km²76% commune
- Montferrat10.89 km²81% commune
- Saint-Nizier-du-Moucherotte10.73 km²97% commune
- Seyssinet-Pariset10.43 km²94% commune
- Le Pin10.39 km²100% commune
- Saint-Égrève10.32 km²100% commune
- Saint-Nicolas-de-Macherin10.20 km²99% commune
- L'Albenc10.18 km²100% commune
- Saint-Martin-le-Vinoux10.02 km²96% commune
- Pommiers-la-Placette10.01 km²58% commune
- Vatilieu9.66 km²99% commune
- Chasselay9.43 km²100% commune
- Saint-Pierre-de-Chérennes9.27 km²76% commune
- Saint-Sauveur9.25 km²100% commune
- Saint-Just-de-Claix9.04 km²77% commune
- Beaulieu8.73 km²100% commune
- Notre-Dame-de-l'Osier8.47 km²100% commune
- Charavines8.28 km²100% commune
- Saint-Marcellin8.19 km²100% commune
- Chatte8.09 km²36% commune
- Rencurel8.06 km²23% commune
- Rives8.03 km²74% commune
- Vourey7.04 km²100% commune
- Coublevie6.81 km²100% commune
- Saint-Hilaire-du-Rosier6.54 km²40% commune
- Morette6.35 km²100% commune
- Sarcenas6.34 km²83% commune
- Fontaine6.23 km²100% commune
- Saint-Jean-de-Moirans6.17 km²100% commune
- Chantesse5.81 km²100% commune
- Fontanil-Cornillon5.64 km²100% commune
- Réaumont5.63 km²100% commune
- Saint-Cassien5.61 km²100% commune
- Saint-Blaise-du-Buis5.22 km²100% commune
- Cras5.11 km²100% commune
- Renage5.09 km²100% commune
- Saint-André-en-Royans5.06 km²48% commune
- Têche5.06 km²100% commune
- Beaucroissant5.05 km²43% commune
- Mont-Saint-Martin4.94 km²100% commune
- Charnècles4.77 km²100% commune
- Autrans4.66 km²11% commune
- Oyeu4.66 km²33% commune
- Murinais4.52 km²55% commune
- La Murette4.20 km²100% commune
- Presles3.97 km²16% commune
- Valencogne3.94 km²52% commune
- Saint-Julien-de-Raz3.89 km²37% commune
- Saint-Pierre-de-Chartreuse3.77 km²5% commune
- Bilieu3.66 km²48% commune
- Quincieu3.55 km²74% commune
- Seyssins3.09 km²39% commune
- Chirens3.06 km²17% commune
- Grenoble2.83 km²16% commune
- La Sône2.61 km²91% commune
- Roybon2.08 km²3% commune
- Beauvoir-en-Royans2.08 km²100% commune
- Miribel-les-Échelles1.79 km²6% commune
- Corenc1.13 km²19% commune
- Méaudre0.98 km²3% commune
- Virieu0.91 km²8% commune
- Chevrières0.78 km²5% commune
- Saint-Joseph-de-Rivière0.75 km²4% commune
- La Forteresse0.72 km²8% commune
- Brion0.60 km²14% commune
- Saint-Michel-de-Saint-Geoirs0.30 km²5% commune
- La Bâtie-Divisin0.28 km²3% commune
- Auberives-en-Royans0.24 km²5% commune
- Merlas0.23 km²2% commune
- Saint-Pierre-de-Bressieux0.18 km²1% commune
- Claix0.09 km²0% commune
- Massieu0.07 km²1% commune
- Colombe0.03 km²0% commune
- La Tronche0.01 km²0% commune
25 intersecting protected areas
Vercors
IUCN VRegional Nature Park
263.86 km² overlap
Chartreuse
IUCN VRegional Nature Park
151.90 km² overlap
Special Areas of Conservation (Habitats Directive)
12.56 km² overlap
Ubacs du Charmant Som et gorges du Guiers Mort
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.33 km² overlap
Les Ecouges
IUCN IaForest Integral Biological Reserve
2.47 km² overlap
Engins
IUCN IaForest Integral Biological Reserve
1.69 km² overlap
Biotope Protection Order
1.25 km² overlap
Marais De Saint-Aupre
IUCN IVBiotope Protection Order
0.78 km² overlap
La Bourne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.49 km² overlap
16 more protected areassorted by overlap area
etang de mai
IUCN IVLand acquired by a regional conservatory of natural areas
0.46 km² overlap
boucle des moiles
IUCN IVLand acquired by a regional conservatory of natural areas
0.33 km² overlap
Marais De La Lèze
IUCN IVBiotope Protection Order
0.32 km² overlap
Bois De Pramiane
IUCN IVBiotope Protection Order
0.26 km² overlap
Marais De Cras
IUCN IVBiotope Protection Order
0.24 km² overlap
marais de la leze
IUCN IVLand acquired by a regional conservatory of natural areas
0.22 km² overlap
Les Goureux
IUCN IVBiotope Protection Order
0.20 km² overlap
Roselières Du Lac De Paladru
IUCN IVBiotope Protection Order
0.18 km² overlap
Biotope Protection Order
0.16 km² overlap
Marais Des Sagnes
IUCN IVBiotope Protection Order
0.12 km² overlap
Le Gouret
IUCN IVBiotope Protection Order
0.07 km² overlap
Marais Des Engenières
IUCN IVBiotope Protection Order
0.06 km² overlap
Etang De Montenas
IUCN IVBiotope Protection Order
0.05 km² overlap
marais de cras
IUCN IVLand acquired by a regional conservatory of natural areas
0.04 km² overlap
marais des goureux
IUCN IVLand acquired by a regional conservatory of natural areas
0.03 km² overlap
Marais du Val d'Ainan
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
7 999 distinct species · 668 964 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 20 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 l'Isère : 16 espèces reliées par 68 interactions GloBI sur 5 types (connectance 35.8%, filtre Serrano α=0.2). 4 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°
9,7°C
Annual rain
980mm
Moisture idx (CMI)
0,08
Runoff
518mm/an
PET
885mm
AET
690mm
Mean slope
11,9°
Water table
426cm
Forest
62%
Crops
9%
Urban
14%
Protected
46%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)