Between these two extremes, Elysium and Tartarus, we pass shifting, panoramic scenes of wondrous beauty, stage upon stage of pastoral charm, picture after picture of idyllic sweetness and grace. Long we can glance behind us and see the little gray town, its spires outlined in steely gray against the embracing hills, its gardens and orchards bright as emerald—towering above all, the bare, purple, wide-stretching Lozère.
The weather is superlative, and the clear, gemlike lines of sky and foliage are as brilliantly contrasted as in an Algerian spring.
All this time we seemed to be climbing a mountain; we are, in reality, ascending the steep, wooded sides or walls of the Causse de Mende, prototype on a smaller scale of the rest—a vast mass of limestone, its summit a wilderness, its shelving sides a marvel of luxuriant vegetation.
Every step has to be made at a snail's pace, the precipitous slopes close under our horses' hoofs being frightful to contemplate. This drive is an excellent preparation for an exploration of the Lozère. We are always, metaphorically, going up or coming down in a balloon.
After two hours' climb, the features of the landscape change. One by one are left behind meandering river, chestnut and acacia groves, meadows fragrant with newly-mown hay, grazing cattle, and cheerful homesteads.
We now behold a scene grandiose indeed as a panorama, but unspeakably wild and dreary.
Here and there are patches of potatoes, buckwheat and rye, the yellow and green breaking the gray surface of the rocky waste; not a habitation, not a living creature, is in sight. Before us and around stretch desert upon desert of bare limestone, the nearer undulations cold and slaty in tone, the remoter taking the loveliest, warmest dyes—gold brown, deep orange, just tinted with crimson, reddish purple and pale rose. We are on the threshold of the true Caussien region. Sterility of soil, a Siberian climate, geographical isolation, here reach their climax, whilst at the base of these lofty calcareous tablelands lie sequestered valleys fertile fields and flowery gardens, oases of the Lozérien Sahara.
Above, not a rill, not a beck, refreshes the spongy, crumbling earth; we must travel far, penetrate the openings just indicated by the dark-blue shadows in the distance, and descend the lofty walls of the Causses to find silvery cascades, impetuous rivers, and fountains gushing from mossy clefts. The showers of spring, the torrential rains of autumn, the snows of winter, have filtered to a depth of several thousand feet.
We are not within sight of the grand Causse Méjean, nor of the Black Causse, or Causse Noir, and only on the threshold of Sauveterre, yet some idea may be gathered here of what M. E. Réclus calls a 'Jurassic archipelago,' once a vast Jurassic island. Imagine, then, a group of promontories, their area equal to that of Salisbury Plain, Dartmoor and Exmoor combined, with the varying altitudes of the loftiest Devonshire tor and Cumberland hill.
Such a comparison may convey some feeble notion of the three Causses just named, two of which belong to the Lozère. The Causse Noir is partly in the Aveyron. Their extraordinary conformation must be seen and studied by all who would familiarize themselves with this geological phenomenon.