HydroBASINS lev08 watershed · #2080568670
Bassin de l'Eygues
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 5 administrative regions : Ardèche, Drôme, Gard, Hautes-Alpes, Vaucluse
Sub-basin area
2 022,4km²
Upstream area
74 987,8km²
Discharge
1 482,2m³/s
Mean elev.
446m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de l'Ardèche2394 km²
- Bassin du Roubion1603 km²
5 dept-equivalent regions (GADM L2)
- 1291.7 km²63.7% of basin
- 507.1 km²25.0% of basin
- 168.5 km²8.3% of basin
- 59.1 km²2.9% of basin
- 0.2 km²0.0% of basin
146 communes (GADM L5)Available for FRA, RWA
- Valréas59.30 km²100% commune
- Bollène54.84 km²100% commune
- Orange46.13 km²61% commune
- Grignan45.09 km²100% commune
- Visan42.65 km²100% commune
- Mondragon40.37 km²100% commune
- Saint-André-de-Rosans37.31 km²100% commune
- Taulignan34.91 km²99% commune
- Vinsobres34.50 km²100% commune
- Roche-Saint-Secret-Béconne33.57 km²100% commune
- Venterol31.54 km²100% commune
- Suze-la-Rousse30.53 km²100% commune
- Vesc29.90 km²73% commune
- Rosans29.63 km²100% commune
- Teyssières28.29 km²100% commune
- La Garde-Adhémar28.07 km²100% commune
- Verclause26.37 km²100% commune
- Mornas26.10 km²100% commune
- Villeperdrix26.00 km²100% commune
- Montmorin25.55 km²100% commune
- Bruis25.37 km²100% commune
- Bellegarde-en-Diois24.73 km²95% commune
- Chauvac-Laux-Montaux24.35 km²98% commune
- Piolenc24.23 km²100% commune
- La Motte-Chalancon23.48 km²100% commune
- Tulette23.28 km²100% commune
- Nyons23.23 km²100% commune
- Mirabel-aux-Baronnies22.70 km²100% commune
- Cairanne22.69 km²100% commune
- Condorcet22.46 km²100% commune
- Saint-Paul-Trois-Châteaux22.13 km²100% commune
- Saint-Ferréol-Trente-Pas21.51 km²100% commune
- Aubres20.60 km²100% commune
- Sérignan-du-Comtat20.31 km²100% commune
- Donzère19.96 km²61% commune
- Sainte-Cécile-les-Vignes19.59 km²100% commune
- Cornillac19.30 km²100% commune
- Uchaux18.78 km²100% commune
- Rochegude18.76 km²100% commune
- Saint-Sauveur-Gouvernet18.68 km²93% commune
- Chaudebonne18.59 km²90% commune
- Montségur-sur-Lauzon18.46 km²100% commune
- Réauville18.29 km²100% commune
- Ribeyret17.96 km²97% commune
- Montjoux17.71 km²97% commune
- Sainte-Jalle17.58 km²94% commune
- Sahune17.17 km²100% commune
- Travaillan17.02 km²95% commune
- Lemps16.99 km²100% commune
- Rémuzat16.55 km²100% commune
- Chalancon16.09 km²45% commune
- Camaret-sur-Aigues15.85 km²86% commune
- Rousset-les-Vignes15.75 km²100% commune
- Le Poët-Sigillat15.40 km²100% commune
- Châteauneuf-de-Bordette14.97 km²98% commune
- Clansayes14.80 km²100% commune
- Grillon14.73 km²100% commune
- Arnayon14.58 km²72% commune
- Saint-Restitut14.50 km²100% commune
- Cornillon-sur-l'Oule14.33 km²100% commune
- Roussas13.82 km²87% commune
- Arpavon13.70 km²100% commune
- Saint-Dizier-en-Diois13.48 km²98% commune
- Pont-Saint-Esprit13.48 km²71% commune
- Rochebrune13.41 km²79% commune
- Bellecombe-Tarendol13.30 km²100% commune
- Montaulieu12.92 km²99% commune
- Montbrison-sur-Lez12.92 km²100% commune
- Establet12.76 km²100% commune
- Valaurie12.63 km²100% commune
- Saint-Alexandre12.61 km²98% commune
- Pierrelatte12.37 km²25% commune
- La Baume-de-Transit12.22 km²100% commune
- Bouchet11.72 km²100% commune
- Vénéjan11.55 km²61% commune
- Lapalud11.20 km²66% commune
- Montferrand-la-Fare11.19 km²99% commune
- Lamotte-du-Rhône11.12 km²91% commune
- Le Pègue11.10 km²100% commune
- Richerenches11.07 km²100% commune
- Moydans10.65 km²100% commune
- Saint-May10.55 km²100% commune
- Montréal-les-Sources10.49 km²100% commune
- Pommerol10.48 km²100% commune
- Montjoyer10.47 km²57% commune
- Chantemerle-lès-Grignan10.16 km²100% commune
- Piégon9.73 km²95% commune
- Villedieu9.66 km²82% commune
- Saint-Étienne-des-Sorts9.60 km²100% commune
- La Charce9.45 km²100% commune
- Sorbiers9.32 km²67% commune
- Lagarde-Paréol9.15 km²100% commune
- Saint-Maurice-sur-Eygues9.00 km²100% commune
- Saint-Roman-de-Malegarde8.81 km²100% commune
- Roussieux8.78 km²92% commune
- Eyroles8.77 km²100% commune
- Salles-sous-Bois8.51 km²94% commune
- Saint-Pantaléon-les-Vignes8.29 km²100% commune
- Solérieux8.27 km²100% commune
- Bésignan7.96 km²90% commune
- Rottier7.95 km²100% commune
- Curnier7.92 km²100% commune
- Chamaret7.83 km²100% commune
- Buisson7.49 km²82% commune
- Les Granges-Gontardes7.40 km²100% commune
- Rasteau7.31 km²38% commune
- Sainte-Marie7.20 km²100% commune
- Malataverne6.51 km²40% commune
- Les Pilles6.49 km²100% commune
- Colonzelle6.14 km²100% commune
- Valouse5.92 km²100% commune
- L'Épine5.43 km²16% commune
- Chusclan5.13 km²39% commune
- Caderousse3.48 km²11% commune
- Carsan3.32 km²29% commune
- Pelonne2.59 km²100% commune
- Codolet2.55 km²45% commune
- Puyméras2.38 km²16% commune
- Allan2.22 km²8% commune
- Valdrôme1.45 km²4% commune
- Violès1.35 km²9% commune
- Aleyrac1.10 km²17% commune
- Dieulefit0.88 km²3% commune
- Courthézon0.75 km²2% commune
- Saint-Gervais0.73 km²6% commune
- Villebois-les-Pins0.67 km²6% commune
- Jonquières0.64 km²3% commune
- Jonchères0.49 km²3% commune
- Le Poët-Laval0.44 km²1% commune
- Bouvières0.42 km²2% commune
- Saint-Auban-sur-l'Ouvèze0.37 km²2% commune
- Bénivay-Ollon0.24 km²3% commune
- Saint-Nazaire0.19 km²3% commune
- Saint-Just0.16 km²2% commune
- Sainte-Euphémie-sur-Ouvèze0.15 km²1% commune
- Vercoiran0.11 km²1% commune
- Beaumont-en-Diois0.10 km²1% commune
- Montjay0.06 km²0% commune
- Laborel0.06 km²0% commune
- Montauban-sur-l'Ouvèze0.05 km²0% commune
- Charens0.04 km²0% commune
- Sablet0.03 km²0% commune
- Buis-les-Baronnies0.02 km²0% commune
- Espeluche0.01 km²0% commune
- La Piarre0.00 km²0% commune
- Montguers0.00 km²0% commune
19 intersecting protected areas
Baronnies Provençales
IUCN VRegional Nature Park
800.31 km² overlap
Baronnies - gorges de l'Eygues
IUCN Not ReportedSpecial Protection Area (Birds Directive)
120.27 km² overlap
Le Rhône aval
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
21.59 km² overlap
Sables du Tricastin
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
19.64 km² overlap
Pelouses et habitats rocheux des gorges de Pommerol
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
15.11 km² overlap
Donzère-Mondragon
IUCN IVNational Hunting and Wildlife Reserve
14.69 km² overlap
Marais de l'Ile Vieille et alentour
IUCN Not ReportedSpecial Protection Area (Birds Directive)
14.61 km² overlap
Forêts alluviales, rivière et gorges de l'Eygues
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
10.14 km² overlap
L'Aigues (ou Eygues ou Aygues)
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
8.22 km² overlap
10 more protected areassorted by overlap area
Natural habitats protection Order
7.23 km² overlap
Biotope Protection Order
3.88 km² overlap
Mont Ventoux
IUCN VRegional Nature Park
2.32 km² overlap
Forêt de Valbonne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.09 km² overlap
Biotope Protection Order
1.78 km² overlap
Milieux alluviaux du Rhône aval
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.95 km² overlap
Special Areas of Conservation (Habitats Directive)
0.22 km² overlap
massif des couriasses
IUCN IVLand acquired by a regional conservatory of natural areas
0.14 km² overlap
ile des brotteaux
IUCN IVLand acquired by a regional conservatory of natural areas
0.05 km² overlap
Basse Ardèche urgonienne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
7 737 distinct species · 818 820 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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'Eygues : 24 espèces + 6 bulles famille, 53 interactions GloBI documentées sur 5 types (connectance 12.2%, filtre Serrano α=0.2). Les 6 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
11,1°C
Annual rain
845mm
Moisture idx (CMI)
-0,08
Runoff
351mm/an
PET
925mm
AET
651mm
Mean slope
9,2°
Water table
350cm
Forest
37%
Crops
30%
Urban
5%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)