Crossing the Indus in the ferry-boat, a little below the rock of Iskardo, my road lay along the north bank of the river, through extensive tracts of cultivation. There was much less snow on the surface of the fields in the village of Koardu, the first through which I passed on the north bank, than in the town of Iskardo, owing to the more favourable exposure. The villagers were busy sprinkling a thin layer of earth over the snow to hasten its melting. This village, which is about five miles distant from Iskardo, is backed by very high masses of clay conglomerate and clay, forming very irregular, often precipitous banks, resting on the ancient rocks behind. From Iskardo these beds are very conspicuous, but in the village itself only a very small portion can be seen at a time.
West of Koardu, a ridge of mica-slate, containing abundance of garnets, advances close to the river, which here runs on the northern side of the valley. The road up the valley skirts the base of this projecting spur, and then passes over level platforms for about four miles. The level tracts were still covered with snow, but in rocky places, and on all slopes facing the south, the ground was quite bare. Four miles from Koardu I passed the very large village of Kamar, the fields rising in terraces one behind another on a steeply sloping platform, which skirts the plain for nearly two miles. Behind the village, the same system of conglomerate and clay-beds, as at Koardu, rises in steep banks.
About a mile beyond Kamar, which is the last village on the north side of the Iskardo plain, the valley of the Indus contracts very suddenly, the mountains closing in upon the river. The beds of lacustrine clay extend without any diminution to the end of the open valley, and are covered, when close to the mountains, by numerous boulders of all sizes, many of which are of great dimensions. The fine clay at the termination of the open plain appears to underlie a great mass of boulder conglomerate, which is continued into the narrow part of the river valley.
[Sidenote: ENTRANCE OF RONDU. _February, 1848._]
Where the river passes from the open plain into the narrow ravine, the inclination of its bed seems increased, and the rapidity of its motion becomes much greater. This result is quite in accordance with what has been observed in the Nubra and Khapalu plains. Indeed, narrow valleys are so generally steeply sloping, and wide valleys so generally nearly level, that it can scarcely be doubted that the inclination of the surface is in some way connected with the width or amount of excavation of the valley.