A river flows through this valley of Xauxa, which is that which I said, in the chapter on Bombon, was the source of the river of La Plata. The valley is fourteen leagues long, and four to five broad, in some places more, in others less. It was so populous throughout, that, at the time the Spaniards first entered it, they say for certain that it contained more than thirty thousand Indians; now I doubt whether it has ten thousand. They were divided into three tribes, although all are and were known by the name of Huancas. They say that this arrangement has existed since the time of Huayna Ccapac, or of his father, who divided the lands and settled their boundaries. One of these tribes was called Xauxa, whence the valley took its name, and the chief Cucixaca. The second was called Maricavilca, over which Huacarapora was chief. The third was known as Llacsapallanca, and its chief Alaya. In all these parts there are great buildings of the Yncas, but the largest edifices were in the principal part of the valley, called Xauxa. Here there was a great area covered with strong and well built stone edifices, a house of virgins of the sun, a very rich temple, and many store-houses well supplied with provisions. Here there were many workers in silver, who made vases of silver and gold for the service of the Yncas, and for ornaments in the temple.