It had taken him, before, two and a half days to reach the river mouth from here, so that it seems he was about four days going down from his farthest point.
Roughly estimating his progress at six miles an hour for twelve hours a day, in four days the distance covered would be about 288 miles.

He says he went up eighty-five leagues (this would be fifty-five the first time and thirty more the second), which, counting in Mexican leagues of two and three quarter miles each, gives a distance of 233 3/4 miles, or about one hundred miles above the mouth of the Gila.

This stream he does not mention.

He may have taken it for a mere bayou, but it appears to be certain that he passed beyond it.

He says Ulloa was mistaken by two degrees as to his northernmost point, and that he sailed four degrees beyond him.