Fearing that my horse would give out, as he had lived mostly upon bushes and coarse herbage since leaving San Juan, I arose early, and, guided by the bright starlight, caught my animal, and led him up the valley. A spur of the sierra blocked up the valley, and this steep ascent had to be climbed by the poor animal, he halting every few steps to draw breath. Having reached the summit, he heaved a deep sigh, as if conscious of having finished a hard task.

A magnificent view rewarded me for the exertion of making the ascent. The rocky grandeur filled me with awe, for I was surrounded by a sublime chaos—broken hills, valleys, and barren cliffs of the sierra.

A white cloud passed over the valley, shutting me out from sight of the world below; it was no easy task to follow the rocky path beyond; sometimes it led down abrupt descents into dismal valleys, then again almost to the level of the summit of the mountain range. Along this crooked path but one mule can pass at a time, and there are places where it requires but a single unsteady movement to send the loaded animal into the abyss below. For nearly a mile the sierra on the left side was formed of red freestone, and was, in many places, as regular as a castle wall. In this lonely place the least sound would catch my ear.

The sierra that I had crossed is called the Paramilla, or “bleak place;” in the warmest day a cold wind from the snow peaks of the Andes blows drearily across it. Leaving the broken mass of rock, the path descended abruptly into a little valley, which contained a stone hut, and a corral for goats. This desolate spot was enlivened by the presence of one of the prettiest señoras that I ever met. She informed me that her husband, who was then hunting guanacos, supported himself principally by keeping goats that browsed upon the sides of the mountains. When he wished to butcher any of the guanacos, he, with the assistance of a pack of trained curs, drove them into natural rock-walled corrals among the mountains, where, hemmed in, the animals were easily despatched with the boliadores and knife.

Leaving the valley, I ascended to a high plain that seemed to be on a level with the summits of the neighboring range of the Cordilleras, and as the sun was about sinking below the western horizon, I perceived that this was to be my camping-place for the night. Laying the saddle upon the ground for a pillow, and carefully spreading the blankets, I lay down to rest, having first tied my horse to a stunted bush, which he vainly tried to eat.

I dropped into a restless slumber; but an hour later, a wild, desolate cry caused me to spring from my blankets, and prepare for defence. I had been told many stories of the cruelty of the puma, or American lion, and at this moment feared that one of these animals was on the plain. It was along this part of the road that guides had seen their tracks, and hunters had run them down with dogs a few miles from the plain upon which I had encamped.

Another wild cry, and the animal passed along the plain without heeding either my horse or me, and, glad to be left in peace, I sank into a sound sleep, that continued unbroken until the rising sun gilded the snowy crests of the lofty Cordillera.

It was a beautiful scene that lay before me. Across the plain floated white clouds of mist, like airy spirits, while before me lay a narrow valley, through which the road led to Uspallata. Upon one side of the plain rose several low hills, green with coarse herbage, upon which a small herd of llamas were feeding, as if unconscious of the presence of man.

I soon was ready to start; but my old horse seemed incapable of moving. I rubbed his stiff limbs until I had worked myself into a perspiration; he was so far recovered as to be able to move slowly. I seized the lasso, and led him on as before.

The road descended to the ravine just referred to, and for an hour or so my journey led through the surrounding cliffs; but at length we again emerged upon a flat plain, covered with low bushes, and over this I led the way until afternoon, when a green spot at the foot of a high range of mountains, and the hut of a farmer, caught my eye, and soon after I drew up before the last house in the Argentine Republic—the Guarde of Uspallata.