Printed from: https://www.braemoor.co.uk/crolles/vouay.shtml on 22 Apr 2018
Copyright: © 2017 - 2018 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: 2,022 m

How to find it

The easiest way to find Gouffre Bob Vouay (occasionally misspelt as "VouEy") is to follow the waymarked GR9 from the Col du Coq as far as 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 through a rubbish bin inscribed with the words "Ad augusta per angusta" ("To triumph through hardship").

Map of Dent de Crolles showing position of Gouffre Bob Vouay on the IGN 1:25000 map 3334OT.
Map of Dent de Crolles showing the location of Gouffre Bob Vouay on the IGN 1:25000 map 3334OT
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Location of Gouffre Bob Vouay on Google Earth - north is to the right
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
The rock arch is in the centre of the photograph, Mont Blanc in the distance
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, Mont Blanc in the distance
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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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The rubbish bin entrance of Gouffre Bob Vouay inscribed with 'Ad augusta per angusta'
The rubbish bin entrance of Gouffre Bob Vouay inscribed with the words "Ad augusta per angusta"
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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 690 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 which includes some impressive photographs and an updated large scale survey of the southern half of the system (further information available on bona fide request). Apparently the route through the 300 m-long Grande Méandre was optimised and equipped in about 2013 during preparations for a Vouay - Guiers Mort - Vouay return trip, which was eventually made in 2016 (Spéléo Magazine 99 - copy available on bone 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.

The cave is named after Robert Vouay (1923-1982), a leading caver and the founder of the Spéléo-Club de la Seine.

Cross-section of the passages below Gouffre Bob Vouay, drawn by Gilbert Bohec.
Red shows the Vouay - Chevalier route; blue the Vouay - Glaz route.
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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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