Saint Hilaire du Touvet / Plateau des Petites Roches from Saint-Nazaire-les-Heymes is a climb in the region Grenoble. It is 10.5 km long and bridges 692 m of vertical ascent with an average gradient of 6.6%, resulting in a difficulty score of 556. The top of the ascent is located at 1025 m above sea level. Climbfinder users shared 2 reviews of this climb and uploaded 1 photo.
Road names: D 30 & Route des Trois Villages
4.0 by Franck_PastorThis is an automatic translation, the original language is: French.The most substantial part is in fact the first half of the ascent of the Col du Coq, on the Saint-Nazaire side. After 6.5 km of climbing, shortly after the tunnels, you have the choice of going left on the D30E, towards the pass, or, if you are already tired or want to do the Petites Roches plateau (or even the Chartreuse balcony as far as La Palud), staying on the D30 towards Saint-Pancrasse and then Saint-Hilaire. In both cases, you'll enjoy magnificent views over the valley.... read more
Welcome! Please activate your account if you would like to share something. Look for the verification email in your inbox.
If you want to upload your photos, you need to create an account. It only takes 1 minute and it's completely free.
Continue with Google
Continue with Facebook
Continue with Apple
Sign up with email
The first route up to the Petites Roches plateau coming from Grenoble – bearing in mind that none of them are really easy.
This route follows much of the Col du Coq up to the exit of the St Pancrasse tunnel: it’s gruelling right from the start, with long, steep straights as you climb out of St Nazaire; the gradientever really eases off and requires sustained effort right up to the tunnel exit. Once you’ve left the pass road behind, you can finally catch your breath and enjoy the first few kilometres of the Chartreuse balconies up to the Col de Marcieu, which at this stage is just a formality.
Le premier accès au plateau des Petites Roches en venant de Grenoble, en sachant qu'aucun n'est vraiment facile.
Celui-ci emprunte une bonne partie du col du Coq jusqu'à la sortie du tunnel de St Pancrasse: brutal dès le pied avec ses longs bouts droits et raides pour s'extirper de St Nazaire, la pente ne s'adouçit jamais vraiment et nécessite un effort soutenu jusqu'à la sortie du tunnel. Une fois la route du col quittée, on peut enfin souffler et profiter des premiers kilomètres des balcons de Chartreuse jusqu'au col de Marcieu, qui à ce stade n'est qu'une formalité.
The most substantial part is in fact the first half of the ascent of the Col du Coq, on the Saint-Nazaire side. After 6.5 km of climbing, shortly after the tunnels, you have the choice of going left on the D30E, towards the pass, or, if you are already tired or want to do the Petites Roches plateau (or even the Chartreuse balcony as far as La Palud), staying on the D30 towards Saint-Pancrasse and then Saint-Hilaire. In both cases, you'll enjoy magnificent views over the valley.
La partie la plus consistante est en fait la première moitié de la montée du col du Coq, versant Saint-Nazaire. À 6,5 km de montée, peu après les tunnels, on a le choix entre aller à gauche sur la D30E, vers le col ou, si on est déjà fatigué ou si on souhaite faire le plateau des Petites Roches (voire le balcon de Chartreuse jusqu'à La Palud), on reste sur la D30 vers Saint-Pancrasse puis Saint-Hilaire. Dans les deux cas, on pourra profiter de magnifiques points de vue sur la vallée.
| 7 km/h | 01:29:44 |
| 11 km/h | 00:57:06 |
| 15 km/h | 00:41:52 |
| 19 km/h | 00:33:03 |
This page is better in the app
