Col de Porte - Le Mauchon
Route n°1 : An itinerary with plenty of shade, very pleasant in summer. Head for "La Pinéa" on the waymarked path.
Route details
Follow this path to Les Frettes. This is where you can take the outward/return variant with a small single and some rock climbing before reaching the summit. You then descend to the riverbed before climbing back up to Gervais, then returning to Col de Porte via Le Mauchon.
Pets welcome
Opening
All year round daily.
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Latitude : 45.289754
Longitude : 5.767091
38700 Sarcenas
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The starting point is : from the Prairie du Col de Porte
(signpost at the start of the Charmant Som road)
Information updated on 30/01/2026
by Office de Tourisme Grenoble Alpes
