HydroBASINS lev08 watershed · #2080569040
Bassin du Cameson
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 : Gers, Tarn-et-Garonne
Sub-basin area
229,2km²
Upstream area
30 922,1km²
Discharge
350,62m³/s
Mean elev.
127m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de la Gimone1587 km²
- Bassin du Lemboulas661 km²
2 dept-equivalent regions (GADM L2)
- 221.6 km²96.5% of basin
- 8.1 km²3.5% of basin
30 communes (GADM L5)Available for FRA, RWA
- Saint-Nicolas-de-la-Grave19.00 km²65% commune
- Castéra-Bouzet18.08 km²100% commune
- Saint-Michel13.77 km²100% commune
- Malause11.55 km²100% commune
- Auvillar11.39 km²72% commune
- Boudou10.64 km²86% commune
- Lavit10.39 km²39% commune
- Bardigues10.26 km²88% commune
- Saint-Paul-d'Espis9.89 km²37% commune
- Montgaillard9.14 km²95% commune
- Valence8.47 km²62% commune
- Saint-Jean-du-Bouzet7.97 km²100% commune
- Goudourville7.62 km²67% commune
- Merles7.55 km²100% commune
- Asques7.51 km²71% commune
- Puygaillard-de-Lomagne7.33 km²100% commune
- Espalais7.32 km²100% commune
- Castéron7.18 km²63% commune
- Caumont6.13 km²40% commune
- Saint-Vincent-Lespinasse5.94 km²63% commune
- Pommevic5.88 km²100% commune
- Le Pin4.53 km²100% commune
- Mansonville4.14 km²27% commune
- Balignac4.00 km²100% commune
- Marsac3.88 km²25% commune
- Poupas3.57 km²34% commune
- Lachapelle3.42 km²33% commune
- Saint-Loup2.02 km²15% commune
- Mauroux0.93 km²10% commune
- Golfech0.16 km²2% commune
3 intersecting protected areas
Garonne, Ariège, Hers, Salat, Pique et Neste
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.66 km² overlap
Vallée de la Garonne de Muret à Moissac
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.42 km² overlap
Ile De Merles Montardou
IUCN IVBiotope Protection Order
0.10 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 667 distinct species · 15 529 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Graphe en cours d’indexation
Calcul du tissu écologique de cette entité.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 2s).
Hydroclimate (BasinATLAS lev08)
Mean T°
12,5°C
Annual rain
749mm
Moisture idx (CMI)
-0,24
Runoff
232mm/an
PET
989mm
AET
632mm
Mean slope
3,1°
Water table
213cm
Forest
2%
Crops
92%
Urban
2%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)