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Vercors · about 5 km from Villard-de-Lans

Goule Noire

  • Max depth20 m
  • CertificationFull cave
  • Water temperature≈ 5–7 °Cestimated, no reports yet
  • SpecialSidemount

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The dive

The water is 5–7 °C. Visibility is >7 m at low water, but ~2 m in S5, with clay and a boulder choke (trémie).

Strong current: the S3 exit needs a knotted rope and the river passage runs violently. Floods up to 34 m³/s. Dive only at low water in cold, dry spells; an attempt in February 2003 was called off because of snowmelt.
Slippery black rock and 15–30 m waterfalls in the dry sections; in 2002 a team member broke an ankle. Expect long, hard trips (up to 13 h).
Profile and sections

The water is 5–7 °C. Visibility is >7 m at low water, but ~2 m in S5, with clay and a boulder choke (trémie).

Goule Noire is the Vercors' second spring by discharge (mean 1.5 m³/s, low water 0.3, flood 34 m³/s) and drains the area around Autrans and Méaudre. It has been explored since 1956, with major pushes in 2002–2003 and 2009 (up to 13 h underground).

Practical: protected site (site classé, 1911) in the Parc naturel régional du Vercors. The entrance is at 680 m: check your computer's altitude setting.

Depth and profile
S1 ~60 m / -10 to -12 · S2 30–60 m / -3 to -12 · S3 45–70 m / -6 to -12 · S4 120 m / -8 · S5 330 m / -20 (as of 2002; the accounts differ per sump) · S6 reached in January 2002 · total development 1,500 m, +100 m
Configuration
Sump diving with small cylinders (2002: 4 and 6 L; 2009: 4 + 3.5 L with 3 L reserves), in sidemount in 2009. Backmount: no. CCR: only a small, portable unit (estimate).
DPV: Not DPV-suitable (estimate)
Short sumps with dry, vertical sections in between: no scooter.
Who can dive where
  • CaveAt least Full cave
  • Whole caveConfigurations: Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
  • Whole caveGoes down to 20 m (trimix or deco may be needed) · doesn't decide who may dive
  • Whole caveExperienced divers only · doesn't decide who may dive
Dry sections / haulingExperienced diversDepends on water level or swell

This is how the planner decides who in your team may dive this cave. Rules your own trip adds (organizer, a mail, the AI) show with your trip.

Cave map

How to get there

Pool under the bridge of the same name in the Bourne gorges, on foot from the road. Between the sumps, dry sections with waterfalls (5–30 m) that need climbing and fixed ropes; all kit has to be carried past them.

Plan your route ↗

Around Goule Noire

FillsNo fill station known nearby
Where to sleepAround Villard-de-Lans on Booking.com ↗

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Caves nearby5 within 43 km

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Sources, sharing and disclaimer

Sources

Current conditions

Visibility, flow and water levels change quickly. Right before your dive, check what other divers report:

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Certification requirements, configurations and trimix depths are estimates for planning. Always check them locally and dive within your training. Compiled from public sources: the FFS site plongeesout (site sheets, reports, chamber list), Spelunca, Vercors Plongée, Visites Nature Vercors, Wikipedia, grottomap, DREAL Auvergne-Rhône-Alpes, CDS 38, Vercors Vertical, gouffre-berger.com, Vercors-Drôme tourism, plongeur.com, altituderando and decathlon-outdoor (September 2026). Much of the dive data comes from exploration reports (1997–2010) and sometimes differs between sources. Pins from Wikipedia, grottomap, the tourism database, the plus code of a meeting point and two converted Lambert III coordinates; one site without a pin. ~ = estimate. Rules change — check locally.