On top of one low hill was a large group, and half a mile north of this another, 160 paces long and containing two oblong mounds.

Some of the mounds were ten or twelve feet high.
A very trustworthy Mormon informed me that there were no ruins, in caves or otherwise, along the river between this settlement and Colonia Juarez; nor were there any, he said, for a hundred miles south of Pacheco, though mounds could be seen in several places.

Therefore when I at last departed from Cave Valley, I took his advice and did not follow the course of the Piedras Verdes River down to San Diego, but led the pack train the safer, though longer, way over the regular road.

The country along the river was afterward explored by members of my expedition.

They came upon several small caves high up on the side of the canon, some of which had once been inhabited, to judge from the many potsherds and the smoky roofs; but no cave-houses were found until higher up the river, where some were seen in the sandstone cliffs.
I broke camp in Cave Valley on March 11th, and arrived on the same day at Old Juarez, a few miles from my camp at San Diego.