N°1 Vale and crest of Tiergues
N°1 Vale and crest of Tiergues

N°1 Vale and crest of Tiergues

History and heritage
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This mountain biking tour you will permit to discover two relic of the past: the Rock of Caylus on which was built the castle overlooking the city and the Dolmen Tiergues historical monument.

It first follows a road, then a trail and eventually a singletrack rising gently up to the village of Tiergues where you will be able to enjoy a typical caussenarde architecture. The way back which goes along a ridge line provides a wonderful 360-degree view and a nice downhill ride to the Caylus Rock which overlooksSaint-Affrique.

2 points of interest

  • Dolmen

    Tiergues dolmen

    Listed as a historical monument, the Tiergues dolmen is part of the 20 or so dolmens which have been recorded in the area, some of them being poorly-preserved. The excavations of these megaliths were carried out by Emile Cartailhac during the 20th century and today their artefacts are scattered throughout Midi- Pyrennées (Rodez, Toulouse…)
  • History and heritage

    Counts of Caylus’ Castle

    This rock was used as the bedrock for the building of the Counts of Caylus’ Castle of which nothing remains today

    The castle was destroyed in retaliation of Count of Caylus’ rebellion against his overlord Raymond VII, count of Toulouse, marquis of Provence and of Gothie.


From the F. Fabié square, take the D50 (usually called the graveyard road) for 2.5 km up to the Moulin du Juge.

  1. Before crossing the small bridge, take the path on the left hand side (2nd marker).
  2. Cycle up the vale to the road intersection close to the well known dolmen de Tiergues (it is a 2 km ride there and back to have a look at it). Then take a wide and steeper path which leads to the hamlet of Tiergues.
  3. When you leave the hamlet, cycle up to the crest of the path towards the East.

This section of the route provides you with beautiful views overthe surrounding landscape: the avant Causse du Larzac towards the East, the Monts de Lacaune to the South and the Rougier de Camares to the West. To the North, isthe village of Bouloc with its relay mast rising to more than 1000m above sea level marking the horizon. The way back to Saint-Affrique is mostly a descent except for the approach to the Rocher de Caylus which requires a little extra energy, but the discovery of this site, which resembles a petrified fortress watching over the “villotte” is worth the effort.

  • Departure : From the tourist office join the place François Fabié
  • Arrival : At the tourist office
  • Towns crossed : Saint-Affrique

Altimetric profile


Box tree moths are active from May to October. During the caterpillar phase, they feed on the leaves of box trees. They crawl down trees and move on long silken threads, although these threads are annoying when hiking they do not pose any health risk
Is in the midst of the park
This itinerary is located in the World Heritage zone Causses and Cévennes, mediterranean agropastoral cultural landscape.

Information desks

Saint-Affrique Tourist Office

Boulevard Aristide Briand, 12400 Saint-Affrique





The Tourism Office is open all year round, the opening hours are:

·July and august:

From Monday to Saturday: 9h – 13h & 15h – 19h

Sunday: 9h – 13h

·From September to June:

From Tuesday to Saturday: 9h – 13h & 14h – 17h

Closed: Sundays, Mondays and bank holidays

From November to April, the office is also closed on Saturday afternoon.

Find out more


Access and parking

Saint-Affrique is situated 31 km South West from Millau via the D992 and D999 roads.
When driving from Clermont-Ferrand or Montpellier via the A75, take exit n°46, then follow the road D999 up to Saint-Affrique.
From Toulouse/Albi follow the road D999 up to Saint-Affrique.

Parking :

Recommended carparks: on Maréchal Foch square or on Général de Gaulle square

Report a problem or an error

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