Another anomalous feature is found in the center of the southwestern cluster. Here, in two different rooms, are found walls of double the usual thickness, occurring, however, on only one or two sides of the rooms. These are clearly shown on the ground plan. The westernmost of the two rooms which exhibit this feature has walls of normal thickness on three of its sides, while the fourth or eastern side consists of two walls of normal thickness, built side by side, perhaps the result of some domestic quarrel. The eastern room, however, has thick walls on its northern and eastern sides, and in this case the walls are built solidly at one time, not consisting, as in the previous case, of two walls of ordinary thickness built side by side. An inspection of the ground plan will show that in both these cases this feature is anomalous and probably unimportant. A ruin of the same general type as that just described, but much smaller in size, is found about 6 miles farther northward on the eastern side of the river. It is located on the river edge of a large semicircular flat or terrace, near its northern end, and is built of flat slabs of limestone and river bowlders. It is rectangular in plan and of moderate size. On the southern end of the same flat are two single-room rancher’s houses and a large corral. The rooms in this ruin are oblong and similar in size and arrangement to those just described. [Illustration: Figure 279. Sketch map, site of small ruin 10 miles north of Fossil creek.] About 11 miles above the last-described ruin, or 17 miles above the large ruin near Limestone creek, there is another small ruin of the same general type as the last, located on a similar site, and in all respects, except size, closely similar to it. About 3 miles below the mouth of the East Verde there is still another ruin of similar character, located on the edge of a mesa or bench overlooking the river. It is built of bowlders and slabs of rock. Like the others this ruin is rectangular in plan and of small size. About 10 miles north of the mouth of Fossil creek, on the point of a bench or terrace on the western side of the river, and perhaps 20 feet above it, occurs a small ruin, similar in character to the preceding. The river here makes a long turn eastward, then flows south again, and in the angle a small bench or terrace is formed. At this point the mountains rise abruptly from the river on both sides to a height of over a thousand feet. Fig. 279 illustrates the location of this ruin. So far as could be distinguished from the hills opposite, the rooms occur in two broken lines at right angles to each other. [Illustration: Plate XVIII. GENERAL VIEW OF RUINS OPPOSITE VERDE.]