_20th day and 10 [October]._ The party followed the same course today and at about two leagues encountered a line of oaks and willows which contains the bed of a large stream. It may be very sizable in the rainy season but at present has only a few pools and patches of grass. At about five leagues in the same direction a river with two or three channels was encountered, but with water only in pools on account of the great expanse of sand. It has grass, willows, oaks, and ash. At this place we spent the night. A scouting party went into the mountains but found nothing worth noting. All the country traversed today has very poor grass and is very stony. Many pebbles are found, which are very brilliant and, from their beautiful appearance, are, or would seem to be, rock crystal. The first arroyo discovered in the morning is called Santo Domingo. That at which the camp is situated is [called] the Tecolote [owl] because of the great abundance of these birds.[26] _21st day and 11 [October]._ This morning we kept on in the same direction, toward the east, and, having traveled about four leagues, we came upon an arroyo well populated with willow and some oak. It was found to be dry but had one huge pool. We called it the Santa Ana. It has low banks in that portion which trends toward the plain, or valley. We continued on the same course and after another four leagues, approximately, we reached the San Joaquin River, mentioned in the account of the 4th day of the expedition. All the country we observed between the Tecolote (mentioned yesterday) and the Santa Ana is worse than bad. From the Santa Ana to the San Joaquin there is a little pasturage, although it is sparse and spread out widely. Some other stream beds are seen but none merit consideration: they might carry some water in the winter. From the Santa Ana to the San Joaquin River the land is flat and free from stones or pebbles. The neighboring hills and the Sierra itself are covered with oaks.[27] _22nd day and 12 [October]._ Today the expedition rested because it was Sunday and in order to give some rest to the horses which needed it badly.