La croix du Signal depuis le col de l'Épine

Route
-At the Col de l'Épine car park follow the trail towards Château Richard; it passes close to the mare pédagogique (educational pond) and the hôtel des abeilles (bee hotel).
Continue to the Pré Puisat car park.
The variant no. 1 starts at this stage (6.7 km - 2 hrs 45 mins).
-Continue on the trail which follows the ridge of the Épine Mountains to the Combe d'Armée car park.
The variant no. 2 starts here (3.7 km - 1 hr 45 mins).
-Go up left via the path towards Château Richard then continue on the stony forestry road; follow the yellow markings.
-Turn left at the signpost marked "La Table des Princes, altitude 1 230 m".
Then at the signpost "Les Échelles, altitude 1 260 m" leave the track and take the little trail which goes up the hillside through the forest.
-2 uphill itineraries allow you to reach Château Richard: one runs alongside the cliff, and involves climbing up several metal ladders and quite steep trails; the other waymarked "passage facile" is less steep.
-At the summit, a little platform offers a magnificent panoramic viewpoint and also has an information board.
-Climb up via the forestry track to "Château Richard, altitude 1 370 m" where a venerable tree marks the intersection, turn right in the direction of the Combe d'Armée car park. Continue the trail to the car park of the starting point.

Discover
-The panoramic viewpoint of the Col de l'Épine with an information board which displays the evolution of the landscape in the transverse valley of Chambéry.
-Educational pond: this currently hosts several protected species including the agile frog, common toad or the alpine newt and numerous dragonflies. These insects participate in the organisation of a more vast ecosystem comprising of, among others, bats nesting in the nearby woods.
-The bee hotel: a wooden structure created to provide shelter for pollinating insects (solitary wild bees) and to support the biodiversity.
-Combe d'Armée viewpoint with a vista on Lake Bourget and the surrounding mountains.
-The viewpoint of Castle Richard: panoramic view of the Alps (Mont Blanc, the Chartreuse, Belledonne, Lauzière and Bauges mountain ranges) and a viewpoint of Lake Aiguebelette and the Savoyard foreland. An information board shows some protected species of the Épine Mountains.

Interesting titbits
The town of La Motte-Servolex is one of the first in the Rhône-Alpes region to have created a forest ecological network to develop the biodiversity. For this, 11 old-growth forest stands were delimited in 2009, for a total surface area of 20 hectares or 4% of the local forest's surface area. In these stands, the forest is left to develop freely without human intervention. They are representative of all the natural habitats on the Épine mountain range. The dead wood left there on the forest floor or standing, is a wonderful wealth of biodiversity (habitats of mushrooms, insects, bats). Spaced out by 350 m on average, these forest stands ensure an ecological continuity for the species of the forest. The forest is certified PEFC (Programme for the Endorsement of Forest Certification) since 2003. This system defines and promotes sustainable forest management regulations.