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Cycling route: Col de la Ramaz west side

Cycling route: Col de la Ramaz west side
Cycling route: Col de la Ramaz west side

Description

The slightly gentler gradients through Sommand do little to ease this difficult climb to one of the Tour de France’s most famous passes, but the views of Mont Blanc are outstanding.
Mean gradient: 7%

Technical Information

Racing biking
Difficulty
Hard
Dist.
14 km
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Altimetric profile

Starting point

74440   Mieussy
Lat : 46.13295Lng : 6.527016

Points of interest

image du object

The Sommand peat bog

This bog is unanimously recognized as the most beautiful and richest in the region, as well as in the northern French Alps.Its ecological interest, rich flora and easy access have earned it visits from many professionals: botanists, mycologists, etc... The ecological interest of this peat bog lies in the diversity of its plant communities. In the center are stands of hooked pine (Pinus montana), surrounded or penetrated by (depending on water conditions) : - Wet Carex meadows. - Marshy meadows with Menyanthes (Menyanthes trifoliata). - Dry grasslands with Nard (Nardus stricta). - Dry grasslands with Bulrush (Scirpus caespitosus). - Flooded depressions with Carex limosa. All these groups develop in a relatively acidic environment, which is surprising given that the surrounding rocks are calcareous! Phanerogams number around 200 species, including : - 29 species of Cyperaceae, including Carex limosa, Carex pauciflora and Scheuchzeria palustris. - 7 species of Ericaceae, including the two species typical of sphagnum bogs: Andromeda and Cranberry. - Orchids include Leucorchis albida in the Nardaie. - In the moss under the pines, the delicate Listera cordata and a magnificent Gentian (Swertia perennis) thrive. - Purple gentian can be found in the spikenard lawns, and Drosera obovata and Drosera rotundifolia can be found in the water-logged sphagnum mosses. The lichen flora comprises some 35 species, among which two French rarities stand out: - Cladonia carneola and Cladonia bellidiflora Among the fungi, two rare species are associated with pine: - Lactarius musteus and Boletus flavidus. The bog's secondary interest lies in its remarkable aesthetic quality, highlighted by its forests of hooked pine.

Sommand 74440 Mieussy
- Praz de Lys Sommand Tourisme -
Consulter

Date and time

  • From 01/06/2026 to 31/10/2026

Additional information

Updated by

Conseil Départemental de la Haute-Savoie - 12/06/2025
www.hautesavoiexperience.fr
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Open period

From 01/06 to 31/10.
Depending on the weather.

Location complements

From Cluses: Greenway along the Arve / Marignier, D26 / D907. A40 freeway, exit 19 Cluses center. Nearby train station: Cluses.

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Caution!
We have no information on the difficulty of this circuit. You may encounter some surprises along the way. Before you go, please feel free to inquire more and take all necessary precautions. Have a good trip! 🌳🥾