Printed from: http://braemoor.co.uk/crolles/vouay.shtml on 23 Nov 2017
Copyright: © 2017 - 2017 John Gardner

Réseau de la Dent de Crolles, Chartreuse


Réseau de la Dent de Crolles, Chartreuse

Gouffre Bob Vouay

Northing: 45.30960° Easting: 5.85445° Altitude: 2,026 m

How to find it

The easiest way to find Gouffre Bob Vouay (sometimes misspelt as "VouEy") is to follow the GR9 from the Col du Coq up to the junction where the path to Trou du Glaz takes off to the left to traverse above slopes. Keep right, and follow the path up towards the Pas de l'Œille and the summit. At the top, rather than overcoming the last few metres of height by traversing to the right, keep going up the line of the fault onto the plateau into a small fault valley. The entrance to Gouffre Bob Vouay is associated with the arch 40 m on the left. Clamber up to the arch, and free-climb into a large pit with an identifying label on the wall. Entry is gained, somewhat incongruously, through a rubbish bin.

Map of Dent de Crolles showing position of Gouffre Bob Vouay
Showing location of Gouffre Bob Vouay on the IGN 1:25000 map 3334OT
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Location of Gouffre Bob Vouay on Google Earth
Showing location of Gouffre Bob Vouay on Google Earth - north is to the right
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Gouffre Bob Vouay from the top of the Pas de l'Œille
Showing view of Gouffre Bob Vouay from the top of the Pas de l'Œille looking north-east
The rock arch is in the centre of the photograph
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The arch from the entrance of Gouffre Bob Vouay
Showing the arch from the entrance of Gouffre Bob Vouay
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The identifying label above the entrance of Gouffre Bob Vouay
The identifying label above the entrance of Gouffre Bob Vouay
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Further information

Gouffre Bob Vouay, opened up in 2009, is the highest entrance of the Dent de Crolles system, giving a through trip to Grotte du Guiers Mort of 694 m. All but the entrance series down to -60 m were explored upwards from Trou du Glaz from 1983 onwards. In addition to the connection with Trou du Glaz at the top of P36, there is a second route that descends into Grotte Chevalier via Puits Maurice. Information is sparse on the web, although the following cross section drawn by Gilbert Bohec helps to clarify where it fits into the system. Neither route is equipped for pull-throughs, and both require about 360 m of rope and 30+ hangers.

There is a full account of the cave and its exploration in Spéléo Magazine 70 (2010) by Christian Hubert and Frédéric Pétrot that includes some impressive photographs and an updated large scale survey of the southern half of the system (further information available on bona fide request). There is also a film Dans le Crolles de la Croix à la Source purportedly of the through trip from Gouffre Bob Vouay to Grotte du Guiers Mort, but it is neither very good nor very informative.

Cross-section of the passages below Gouffre Bob Vouay
Red passages indicate the Vouay - Chevalier route; blue passages the Vouay - Glaz route
Drawn by Gilbert Bohec
A cross-section of the passages below Gouffre Bob Vouay - Drawn by Gilbert Bohec
Red passages indicate the Vouay - Chevalier route; blue passages the Vouay - Trou du Glaz route
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