Stevenson, during his journey by donkey in the Cévennes had these words to describe the site:
A new road leads from Pont de Montvert to Florac by the valley of the Tarn; a smooth sandy ledge, it runs about half-way between the summit of the cliffs and the river in the bottom of the valley; and I went in and out, as I followed it, from bays of shadow into promontories of afternoon sun. This was a pass like that of Killiecrankie; a deep turning gully in the hills, with the Tarn making a wonderful hoarse uproar far below, and craggy summits standing in the sunshine high above. A thin fringe of ash-trees ran about the hill-tops, like ivy on a ruin; but on the lower slopes, and far up every glen, the Spanish chestnut-trees stood each four-square to heaven under its tented foliage. Some were planted, each on its own terrace no larger than a bed; some, trusting in their roots, found strength to grow and prosper and be straight and large upon the rapid slopes of the valley; others, where there was a margin to the river, stood marshalled in a line and mighty like cedars of Lebanon. Yet even where they grew most thickly they were not to be thought of as a wood, but as a herd of stalwart individuals; and the dome of each tree stood forth separate and large, and as it were a little hill, from among the domes of its companions. They gave forth a faint sweet perfume which pervaded the air of the afternoon; autumn had put tints of gold and tarnish in the green; and the sun so shone through and kindled the broad foliage, that each chestnut was relieved against another, not in shadow, but in light. A humble sketcher here laid down his pencil in despair.
I wish I could convey a notion of the growth of these noble trees; of how they strike out boughs like the oak, and trail sprays of drooping foliage like the willow; of how they stand on upright fluted columns like the pillars of a church; or like the olive, from the most shattered bole can put out smooth and youthful shoots, and begin a new life upon the ruins of the old.