Ardèche · about 10 km from Ruoms
Résurgence de Rochecolombe
- Max depth20 m
- CertificationFull cave
- Water temperature≈ 12–13 °Cestimated, no reports yet
- SpecialSidemount
Diving and fills
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The dive
The water is exceptionally clear (compared with S1 of the Thiourre); the S1 branch is about 1 °C colder. After floods the descent is littered with blocks and the walls carry a clay film.
Profile and sections
The water is exceptionally clear (compared with S1 of the Thiourre); the S1 branch is about 1 °C colder. After floods the descent is littered with blocks and the walls carry a clay film.
The spring is also called source du Moulin or source de Vendoule. Explored by S.S. Namur (1966–68), later by Poggia/Camus, and by J.-P. Baudu et al. in 2004–2006 (survey to S5, which soon becomes impassable).
- Depth and profile
- 5 sumps (S1–S5) within 420 m of the entrance · development 705 m, 530 m flooded, range 35 m · deepest points around -15/-20 m (right branch 120 m / -20, per one source)
- Configuration
- Small cylinders or small sidemount only: narrow winding meanders, sharp rock, cylinders have to be passed through in places. No backmount or CCR (estimate).
- DPV: Not DPV-suitable (estimate)
- Short and tight: no scooter.
Who can dive where
- At least Full cave
- Configurations: Sidemount / Small cylinders / no-mount (speleo sumps)
- Goes down to 20 m (trimix or deco may be needed)
- Experienced divers only
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How to get there
From the Rochecolombe car park cross the Vendoule bridge, walk through the old village and over a second bridge; the spring is 140 m on the left at the foot of the cirque, SE of the village. Fenced catchment with a gate; the entrance is inside a padlocked building.
Around Résurgence de Rochecolombe
FillsNo fill station known nearby
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