Gélise

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Coordinates: 44°10′47″N 0°17′18″E / 44.17972°N 0.28833°E / 44.17972; 0.28833
Gélise
River
The Gélise river at Barbaste
The Gélise river at Barbaste
Country France
Regions Occitanie, Nouvelle-Aquitaine
Department Gers, Landes, Lot-et-Garonne
Communes Demu, Eauze, Sos, Poudenas, Mézin, Barbaste
Tributaries
 - left Rimbez, Gueyze
 - right Izaute, Auzoue, Osse
City Nérac
Source Pyrénées
 - location Lupiac, Gers, France
 - elevation 215 m (705 ft)
 - coordinates 43°41′02″N 0°10′38″E / 43.68389°N 0.17722°E / 43.68389; 0.17722
Mouth Baïse
 - location Lavardac, Lot-et-Garonne, France
 - elevation 40 m (131 ft)
 - coordinates 44°10′47″N 0°17′18″E / 44.17972°N 0.28833°E / 44.17972; 0.28833
Length 92 km (57 mi)
Basin 2,910 km² (1,124 sq mi)
Discharge for Mézin
 - average 4.72 /s (167 cu ft/s)
Wikimedia Commons: Gélise

The Gélise is a river of south-western France that flows through the Gers, Landes and Lot-et-Garonne departments, in the Occitanie and Nouvelle-Aquitaine regions. It is a left tributary of the Baïse river.

Geography[change | change source]

The Gélise has a length of 92 km (57.2 mi), and a drainage basin with an area of approximately 2,859 km2 (1,104 sq mi).[1]

Its average yearly discharge (volume of water which passes through a section of the river per unit of time) is 4.72 cubic metres per second at Mézin.[2]

Course[change | change source]

The Gélise starts in the place known as Cahuzères in the commune of Lupiac, Gers department, at an elevation of about 215 m (705 ft).[3] It flows to the northwest and then, after Castelnau-d'Auzan, turns to the northeast.

It joins the Baïse on its left bank at Lavardac, at about 40 m (131 ft) of altitude.[4]

The Gélise flows through 21 communes.[1] It passes through the following regions, departments and communes:

Main tributaries[change | change source]

The main tributaries of the Gélise river are:

  • Left tributaries
    • Rimbez - 16.4 km;[5]
    • Gueyze - 17.7 km;[6]
  • Right tributaries
    • Izaute - 37.5 km;[7]
    • Auzoue - 74.1 km;[8]
    • Osse - 120.2 km;[9]

Related pages[change | change source]

References[change | change source]

  1. 1.0 1.1 "La Gélise (O6--0330)" (in French). SANDRE - Portail national d'accès aux référentiels sur l'eau. Retrieved 23 March 2015.
  2. "La Gélise à Mezin" (in French). Banque Hydro. Retrieved 23 March 2015.
  3. "Source de la Gélise" (in French). Géoportail. Retrieved 23 March 2015.
  4. "Confluence de la Gélise" (in French). Géoportail. Retrieved 23 March 2015.
  5. "Le Rimbez (O6720650))" (in French). SANDRE - Portail national d'accès aux référentiels sur l'eau. Retrieved 23 March 2015.
  6. "La Gueyze (O6750590)" (in French). SANDRE - Portail national d'accès aux référentiels sur l'eau. Retrieved 23 March 2015.
  7. "L'Izaute (O67-0400)" (in French). SANDRE - Portail national d'accès aux référentiels sur l'eau. Retrieved 23 March 2015.
  8. "L'Auzoue (O67-0430)" (in French). SANDRE - Portail national d'accès aux référentiels sur l'eau. Retrieved 23 March 2015.
  9. "L'Osse (O68-0400)" (in French). SANDRE - Portail national d'accès aux référentiels sur l'eau. Retrieved 23 March 2015.

Other websites[change | change source]