The rock in which these caves have been hewn is very soft, and almost white in color, save for a slightly reddish brown stratum just below the line of entrances to the cavate chambers. Although, as a general thing, the wall of the cliff is almost perpendicular, and the caves at points inaccessible, entrance to the majority of them can be effected by mounting the heaps of small stones forming the débris, which has fallen even to the bed of the river at various places, and by following a ledge which connects the line of entrances. The easiest approach mounts a steep decline, not far from the promontory at the lower level of the line, which conducts to a ledge running along in front of the caves about 150 feet above the bed of the stream. Roughly speaking, this ledge is about 100 feet below the summit of the cliff. It was impossible to reach several of the rooms, and it is probable that when the caves were inhabited access to any one of them was even more difficult than at present.
Judging from the number of rooms, the cliffs on the left bank of the Verde must have had a considerable population when inhabited. These caverns, no doubt, swarmed with human beings, and their inaccessible position furnished the inhabitants with a safe refuge from enemies, or an advantageous outlook or observation shelter for their fields on the opposite side of the stream. The soft rock of which the mesa is formed is easily worked, and there are abundant evidences, from the marks of tools employed, that the greater part of each cave was pecked out by hand. Fragments of wood were very rarely seen in these cliff dugouts; and although there is much adobe plastering, only in a few instances were the mouths of the caves walled or a doorway of usual shape present. The last room at the southern end, near the promontory at the right of the entrance to a side canyon, has walls in front resembling those of true cliff houses and pueblos in the Red-rock country farther northward, as will be shown in subsequent pages.
This group of cavate dwellings, while a good example of the cavern type of ruins, is so closely associated, both in geographical position and in archeological remains, with other types in Verde valley, that we are justified in referring them to one and the same people. The number of these troglodytic dwelling places on the Verde is very large; indeed the mesas may be said to be fairly honeycombed with subterranean habitations. Confined as a general thing to the softer strata of rock, which from its character was readily excavated, they lie side by side at the same general level, and are entered from a projecting ledge, formed by the top of the talus which follows the level of their entrances.
