The passageway near the eastern side is 4½ feet long, and is 3½ feet wide—an unusual width. It opens into a roughly circular room, 8 feet in diameter, but with a roof only 3½ feet above the floor. Along the northeastern side of this room, there are three small pockets opening on the floor level. On the southern side of the room there is a wide opening into a small attached room, roughly oblong in shape and measuring about 6½ by 4½ feet. Along the southern wall of this little room there are two small pockets, and at the southwestern corner the rock has been cleared out to form a low cavity in the shape of a half dome. In the northwestern corner of the room there is another wide passage to a small room attached to the main room. This passage is now carefully sealed on its southern side with a slab of stone, plastered neatly so as to be hardly perceptible from the southern side. The room into which this passage opens on the north is attached to the northeastern corner of the main apartment by a narrow passage, 1½ feet wide and a foot long. It is roughly circular in shape, about 6 feet in diameter, and is the only chamber in the southern group which has no pockets or cubby-holes. Of these pockets there are no fewer than twelve in the southern group. Near the northern corner of the main room there is a doorway leading into a cove, which in turn opens into the main room of the northern group.
The main room of the northern group is setback about 9 feet from the face of the bluff, but is entered by a passageway about 3 feet long, the remainder of the distance consisting of a cove in the cliff. The room is 22 feet long and 13 feet wide and its roof is 6½ feet above the floor. In the southwestern corner there is a small pocket in the wall, and in the northwestern corner two others, all on the floor level. In the eastern side, however, there is a cubby-hole nearly 2 feet in diameter and about 2 feet above the floor. This is a rare feature. The southern end of the room opens into a kind of cove, raised 2 feet above the floor of the main room, and opening at its southern end into the main room of the southern group. In the floor of this cove there is a circular pit about 18 inches in diameter (marked in the plan, [figure 298]). Although resembling the fire holes already described, the position of
the pit under consideration precludes use for that purpose; it was probably designed to contain water. At the northeastern corner of the principal apartment there is an oblong chamber or storage cist, measuring 6 feet by 7 feet.
Connected with the main room by a passageway 2 feet long cut in its eastern wall, there is an almost circular chamber 7 feet in diameter, and this in turn connects with another chamber beyond it by a passageway 2½ feet long and less than 2 feet wide. The roofs of the two chambers last mentioned are but 4½ and 4 feet, respectively, above the floor, and in none of the rooms of this group, except the main apartment, are pockets or niches found. The whole group extends back about 45 feet into the bluff.
[ BOWLDER-MARKED SITES.]
Within the limits of the region here treated there are many hundreds of sites of structures and groups of rooms now marked only by lines of water-rounded bowlders. As a rule each site was occupied by only one or two rooms, although sometimes the settlement rose to the dignity of a village of considerable size. The rooms were nearly always oblong, similar in size and ground plan to the rooms composing the village ruins already described, but differing in two essential points, viz, character of site and character of the masonry. As a rule these remains are found on and generally near the edge of a low mesa or hill overlooking some area of tillable land, but they are by no means confined to such locations, being often found directly on the bottom land, still more frequently on the banks of dry washes at the points where they emerge from the hills, and sometimes on little islands or raised areas within the wash where every spring they must have been threatened with overflow or perhaps even overflowed. An examination of many sites leads to the conclusion that permanency was not an element of much weight in their selection.
Externally these bowlder-marked sites have every appearance of great antiquity, but all the evidence obtainable in regard to them indicates that they were connected with and inhabited at the same time as the other ruins in the region in which they are found. They are so much obliterated now, however, that a careful examination fails to determine in some cases whether the site in question was or was not occupied by a room or group of rooms, and there is a notable dearth of pottery fragments such as are so abundant in the ruins already described. Excavation in a large ruin of this type, however, conducted by some ranchmen living just above Limestone creek, yielded a considerable lot of pottery, not differing in kind from the fragments found in stone ruins so far as can be judged from description alone.
Plate XXXIII. Bowlder-Marked Site.