Grande Fontaine de Sommelonne (Trou Bleu)
Cave diving in the Barrois · about 4 km from Ancerville
- Max depth
- 7 m
- Type
- Small cylinders / no-mount
- Certification (estimate)
- Full cave
- DPV
- Not DPV-suitable
Also called the résurgence de l'Ornel. Funnel-shaped entrance to a horizontal passage with low ceilings. Visibility often poor (historically 1 m at most).
More about Grande Fontaine de Sommelonne (Trou Bleu)
Signed-in divers also see:
- Whether this site fits everyone's certification, gas and gear
- Access, parking and the route from the road
- Exact map pin and navigation
- Depth profile and sumps
- Configuration advice
- Warnings with sources (1)
- DPV suitability
- Driving times from your stay and a plan with the AI instructor
News
No recent news found about this site. Search yourself on Google News ↗
Not searched automatically yet.
Videos and posts
No videos or posts for this site yet. Search onYouTube ↗Instagram ↗Facebook ↗
Current conditions
Visibility, flow and water levels change quickly. Right before your dive, check what other divers report:
- GERSM – Spéléologie en Meuse (blog) ↗
Blog of the Meuse club with its own cave-diving team: dive reports (Rupt-du-Puits, Dhuit, Sichatel) and an inventory of the Meuse resurgences.
- CDS 55 – Comité départemental de spéléologie de la Meuse ↗
Meuse caving committee: news, club contacts and access to the Savonnières-en-Perthois quarries.
- Association Spéléologique de Haute-Marne (ASHM) ↗
Facebook page of the only caving club in Haute-Marne, which also explores springs with divers and an underwater drone.
- plongeesout (FFS) – sites de la Meuse ↗
FFS cave-diving database with a sheet per spring (Meuse, and under Haute-Marne the Dhuit, Laneuville, Clefmonts and Source Bleue among others) and an accident list.
Plan a cave diving trip to the Barrois
Enter your team, with certifications, gas and configurations, and see right away which caves fit. With driving times from your stay, fill stations and an AI instructor who thinks along.
Certification requirements, configurations and trimix depths are estimates for planning. Always check them locally and dive within your training. Compiled from public sources: plongeesout.ffspeleo.fr (FFS site sheets, mostly 1994–2007; Dhuit 2019), the GERSM and CDS 55, Wikipedia, grottomap (IKARE data), showcaves.com, Spéléo Club de Paris, ABIMES, the Maison lorraine de la spéléologie, the FFS, the Meuse département, JHM, Haute-Marne Attractivité, fontesdart.org, MedSubHyp and CDS 07 (September 2026). Much of the dive data is old or comes from a single exploration team. Pins from Wikipedia and grottomap or converted from plongeesout's Lambert coordinates; the Dhuit has no pin yet. ~ = estimate. Rules change — check locally.