The Tiergues dolmen
The Tiergues dolmen

The Tiergues dolmen

History and heritage
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The Caylus rock which used to be the bedrock of a feudal castle and the Tiergues dolmen, an outstanding megalith are the two symbols of this excursion in the heart the Saint-Affrique countryside.

Following valleys and ridges, throughout buissières and Scotch pine forests, this looped hiking trail is accessible to all and invites you to reach two outstanding stone remains located in the Saint-Affrique region. A pleasant trip back in time… and into geological strata: from the Permian Basin in Saint-Affrique to the limestones and dolostones in the frontal Causses area.

2 points of interest
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.

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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…)
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1 Start from the Painlevé square and follow the D 993 for 100m, then take the left turn under the porch and follow the stone pathway. Carry on along the road on the right hand side, up to the start of the bend, then walk straight on along the path in front of you and then follow a larger track that takes you back onto the road.

2 Take the right turn onto the stone pathway that runs around the base of Caylus rock. Take the path towards the NE which slopes gently upwards and overlooks the D 993 which is to your right.

3 Take the left track that runs in the valley parallel to the D 50. The walk is a shady path alongside the ravine and the Nougayrolles brook.  Leave the farm trail to your right that ascends towards the crest and the path to your left which leads towards Crassous. After the sheepfold the path gets wider and reaches a junction.

4 Take the path that slopes up through woodland and ends at a plateau, nearby the Tiergues dolmen. Walk on the right side of the D 250 alongside the road, and then carry on along a sheep path until you reach the village of Tiergues. Take the road to the right along the graveyard and then walk through the village.

5 When you pass the last houses and reach the calvary cross, take the path opposite which is lined with low walls and hedges. Follow a long “bouissière” (a path lined with box trees) which ends at the crest of the hill where you can enjoy a nice view over Saint-Affrique and the Caylus rock. Carry on along the crest through pasture lands and groves, then go through a cedar plantation, and eventually walk down towards the Caylus rock passing a cliff to your right.

3 From here, follow the route you took back to your starting point.

Departure : From de tourist office reach the Painlevé square
Arrival : Return your way back to the tourist office
Towns crossed : Saint-Affrique

Altimetric profile


The path is steep at the Caylus rock and on the crest before n°3.

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

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 located 31 km from Millau and is accessible from roads D 992 and D 999

Parking :

tourist office Foch square

More information

Report a problem or an error

If you have found an error on this page or if you have noticed any problems during your hike, please report them to us here:

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Traditional catering or cafeteria-style for groups. Bar with terrace. Outdoor swimming pool, fitness centre. 3 meeting rooms with accommodating 15 to 150 people.


The safety of our clients and our staff is priority number one. In response to the coronavirus disease, we have taken additional health and safety measures to ensure our guests security.

We have strengthened our cleaning team and increased the frequency of disinfection of bedrooms, common areas, hotel private areas and especially areas and facilities used by everyone (entrance hall, lifts (by now unauthorised use), door handles, toilets, Reception Hall, room access cards and others).

•    The staff is currently trained to prevent the spread of the coronavirus by means of new cleaning and disinfection techniques appropriate for today's conditions.

•    We have provided our employees with personal protective equipment.

•    We use specifically recommended cleaning products for the disinfection against COVID 19.

•    The storey's staff will not carry out the daily cleaning in occupied rooms to prevent anyone to entering your room.  

•    Change of bathroom linen will be available at the Reception if needed.

•    Alcohol-based disinfectant hand gel is available to our clients in the Reception Hall and in each floor.

•    Your access badge will be disinfected and placed in an envelope. Upon your leaving, please put it in the box provided for this purpose, in the Reception Hall.

•    A reminder of the appropriate physical distancing measures is displayed in the Reception Hall and on each floor.

•    We have implemented directional floor marking in the Reception Hall and a one-way system has been put in place on each floor.

•    We ensure that clients maintain a safe distance from each other.

We will continue to make sure that cleanliness and hygiene are our top priorities throughout all procedures and thank you for respecting the physical distancing measures (1.5 m).

We thank you, for the trust you put in us and wish you a pleasant stay with us!

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Where to sleep ?
Where to sleep ?

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The 1837” has reopened its doors from May 15th 2020…with new sanitary practises to ensure your safety, as well as that of our employees !

The success of our unique hotel is the result of an Aveyronnaise family in love with their region, and a beautiful building that is nearly two hundred years old. Come and spend green holidays and enjoy overnight, or week-long stays in spacious and comfortable suites (fully equipped apartments with, among other features “fitted kitchen, dining area, living room with an office space, free wifi internet access” which can accommodate from 1 to 6 persons), private terraces opening onto a large green terrain, with free and private access to all of the 1837 facilities (with time slot-booking) and providing a unique atmosphere. Situated a few steps away from the small town centre of Saint-Affrique and close to numerous hiking and cycling circuits, the 1837 combines wonderful open spaces, refinement and services in the heart of southern Aveyron.

On the subject of services, please note that from now on, the 1837 offers you packed breakfasts using only local produce, which we leave for you outside the door of your apartment. And if you do not feel like preparing a meal, going to the drive-through or shopping at the local grocery store, we can also deliver midday and evening meal trays to you!

Revitalise yourself and enjoy the simple things in life: spend the siesta hours in the shade of the park, picnic with your family on the river's edge, take a walk and live simply, while enjoying the 1837 facilities (heated indoor overflow swimming pool, SPA facility with sauna, hammam and 2 jacuzzis, cardio training room and a billiards room.

Book now with complete peace of mind and pay later by calling us at 05 65 97 63 30 or sending us an e-mail to

We invite you to share all our wonderful facilities so that you have a relaxing and enjoyable stay !

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Where to sleep ?
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