The absence of clearly defined traces of passageways to the interior of the village is noticeable. This absence can hardly be attributed to the advanced state of decay in the ruin, for nearly all the wall lines can still be easily traced. At one point only is there a suggestion of an open passageway similar to those found in the inhabited pueblos. This occurs in the southeastern corner of the ground plan, between the southern cluster and the southern part of the northeastern cluster. It was about 25 feet long and but 6 feet wide in the clear. There were undoubtedly other passageways to the interior courts, but they were probably roofed over and perhaps consisted of rooms abandoned for that purpose. This, however, is anomalous. There are several other anomalous features in the ground plan, the purposes of which are not clear. Prominent among them is a heavy wall extending about halfway across the southern, side of the village and at some distance from it. The total length of this wall is 164 feet; it is 4 feet thick (nearly twice the thickness of the other walls), and is pierced near its center by an opening or gateway 4 feet wide. The nearest rooms of the village on the north are over 40 feet away. This wall is now much broken down, but here and there, as shown on the plan, portions of the original wall lines are left. It is probable that its original height did not exceed 5 or 6 feet. The purpose of this structure is obscure; it could not have been erected for defense, for it has no defensive value whatever; it had no connection with the houses of the village, for it is too far removed from them. The only possible use of this wall that occurs to the writer is that it was a dam or retaining wall for a shallow pool of water, fed by the surface drainage of a small area on the east and northeast. There is at present a very slight depression between the wall and the first houses of the village toward the north--about a foot or a foot and a half--but there may have been a depression of 2 or 3 feet here at one time and this depression may have been subsequently filled up by sediment. This conjecture could be easily tested by excavating a trench across the area between the wall and the houses, but in the absence of such an excavation the suggestion is a mere surmise.