THE hills that overshadow the coast road between Cap d’Ail and Roquebrune are perhaps as diligently traversed by the winter visitor as any along the Riviera, because in this area level roads are rare and those who would walk far afield must of necessity climb up hill. The hill-side is of interest on account of the number of pre-historic walled camps which are to be found on its slopes. These camps form a series of strongholds which extends from Cap d’Ail to Roquebrune. There are some seven of these forts within this range. The one furthest to the west is Le Castellar de la Brasca in the St. Laurent valley on the Nice side of Cap d’Ail. Then come L’Abeglio just above the Cap d’Ail church, the Bautucan on the site of the old signal station above the Mid-Corniche, the Castellaretto over the Boulevard de l’Observatoire, Le Cros near the mule-path to La Turbie and lastly Mont des Mules and Le Ricard near Roquebrune. Of these the camp most easily viewed—but by no means the most easy to visit—is that of the Mont des Mules, on the way up to La Turbie. This is a bare hill of rough rocks upon the eastern eminence of which is a camp surrounded by a very massive wall built up of huge unchiselled stones. It is fitly called a “camp of the giants,” for no weaklings ever handled such masses of rock as these. The Romans who first penetrated into the country must have viewed these military works with amazement, for competent writers affirm that they date from about 2,000 years before the birth of Christ. Along this hill-side also are traces of the old Roman road, fragments which have been but little disturbed and which, perhaps, are still paved with the very stones over which have marched the legions from the Imperial City. To the east of La Turbie and just below La Grande Corniche are two Roman milestones, side by side, in excellent preservation. There are two, because they have been placed in position by two different surveyors. They stand by the ancient way and show clearly enough the mileage—603. The next milestone (604) stood on the Aurelian Way just outside La Turbie, at the point where the road is crossed by the railway, but only the base of it remains. Between it and the previous milestone is a Roman wayside fountain under a rounded arch. It is still used as a water supply by the cottagers and the conduit that leads to it can be traced for some distance up the hill. The first Roman milestone to the west of La Turbie (No. 605) is on the side of the Roman road as it turns down towards Laghet.[49] This milestone is the finest in the district and is remarkably well preserved. Those who comment on the closeness of these _milliaires_ must remember that the Roman mile was 142 yards shorter than the English. [Illustration: THE ROMAN FOUNTAIN NEAR LA TURBIE.]