The main room is roughly circular in form, measuring 16 feet in its north and south diameter and 15 feet from east to west. The roof is about 7 feet above the floor. Figure 292 shows a section from northwest to southwest (_a_, _b_, figure 291) through the small connected room adjoining on the south, and also an east arid west section (_c_, _d_, figure 291). The floor is plastered with clay wherever it was necessary in order to bring it to a level, and the coating is consequently not of uniform thickness. It is divided into sections by low ridges of clay as shown in the plan and sections; the northern section is a few inches higher than the other. Extending through the clay finish of the floor and into the rock beneath there are four pits, indicated on the plan by round spots. The largest of these, situated opposite the northern door, was a fire hole or pit about 18 inches in diameter at the floor level, of an inverted conical shape, about 10 inches in depth, and plastered inside with clay inlaid with fragments of pottery placed as closely together as their shape would permit. The other pits are smaller; one located near the southeastern corner of the room is about 6 inches in diameter and the same in depth, while the others are mere depressions in the floor, in shape like the small paint mortars used by the Pueblos. [Illustration: Figure 293. Section of water pocket.] The room, when opened, contained a deposit of bat dung and sand about 3 feet thick in the center and averaging about 2 feet thick throughout the room. This deposit exhibited a series of well-defined strata, varying from three-fourths to an inch and a half thick, caused by the respective predominance of dung or sand. No evidence of disturbance of these strata was found although careful examination was made. This deposit was cleared out and a number of small articles were found, all resting, however, directly on the floor. The articles consisted of fragments of basketry, bundles of fibers and pieces of fabrics, pieces of arrowshafts, fragments of grinding stones, three sandals of woven yucca fiber, two of them new and nearly perfect, and a number of pieces of cotton cloth, the latter scattered over the room and in several instances gummed to the floor. Only a few fragments of pottery were found in the main room, but outside in the northern passageway were the fragments of two large pieces, one an olla, the other a bowl, both buried in 3 or 4 inches of debris under a large slab fallen from the roof.