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The Isère Departmental Caving Committee

produced a guidebook to the underground

network of the Dent de Crolles , including

classic routes and recently discovered tra -

verses . The project required the equipping

and securing of certain passages , thanks

to a donation of equipment from the Petzl

Foundation Summary of the work comple

ted 5 newly equipped traverses 110 bolts

installed 200 drilled anchors 770 metres

of rope f ixed 12 equipping days involving

20 participants for a cumulative total of 533

hours underground Detailed route descrip

tions will be available on the Spéléo Se

cours Isère website

www sssi fr

A caving

guidebook for the

Dent de Crolles

S p e l e o e q u i p e m e n t S e r p e n t i n e © T h i b a u d G a l a i

Petzl employees

get involved

The Petzl Foundation supports company employees who volunteer in public -

interest projects run by non - prof it organisations . Since 2017 , 67 projects have

already been supported in France , across Europe and in the United States .

Projects are selected by a jury of employees whose projects were supported

the previous year . In 2025 , all 11 projects submitted received support , with the

jury praising both their quality and the enthusiasm of the volunteers behind

them . Financial support : from € 2 , 000 to € 3 , 000 per project .