Plate XX, which is a general view of the ruin from the southwest, shows the character of the site and the general appearance of the debris, while plate XXI illustrates the character of the masonry. It will be noticed that the level of the ground inside and outside of the row of rooms is essentially the same; in other words, there has been no filling in. It will also be noticed that the amount of debris is small, and that it consists principally of rounded river bowlders. The masonry was peculiar, the walls were comparatively thin, and the lower courses were composed of river bowlders, not dressed or otherwise treated, while the upper courses, and presumably also the coping stones, were composed of slabs of sandstone and of a very friable limestone. The latter has disintegrated very much under atmospheric influences. The white areas seen in the illustrations are composed of this disintegrated limestone. The general appearance of the ruin at the present time must not be accepted as its normal condition. It is probable that the débris has undergone a process of artificial selection, the flat slabs and most available stones for building probably having been removed by neighboring settlers and employed in the construction of stone fences, which are much used in this region. Even with a fair allowance for such removal, however, there is no evidence that the rooms were higher than one story. The quantity of potsherds scattered about the ruins is noticeably small. [Illustration: Figure 286. Ground plan of ruin 8 miles north of Fossil creek.] About 8 miles north of the mouth of Fossil creek, on the eastern side of the Verde, there is a ruin which, though very small, is interesting. At this point there is a long narrow mass of rock, the remains of a volcanic dike, some 80 or 90 feet long, which at the southern end overhangs the stream, while the other end is merged into the ground level. At its southern end the rock is some 50 feet above the water, but 150 feet northward the dike is no longer traceable. A general view of this dike is given in plate XXII, while the ground plan, figure 286, shows the character of the site. There were rooms on all that portion of the dike that stands out prominently from the ground level, and traces of other rooms can be seen on the ground level adjoining on the north and in the causeway resulting from the breaking down and disintegration of the dike. Remains of eight rooms in all can be traced, five of which were on the summit of the rock. The wall lines on the summit are still quite distinct and in places fragments of the original walls remain, as shown on the ground plan. The plan shows typical pueblo rooms of average size, and the masonry, though rough, is of the same character as that of other ruins in the vicinity.