Mr. Cushing thought that the outer western wall of the ancient pueblo was curved in outline. It is more probable, however, that it regulated the lines of the present outer rooms, and is reflected in them, as the usual practice of these builders was to put one partition directly over another in adding to the height of a building. This would suggest a nearly rectangular form, perhaps with jogs and offsets, for the old builders could not incorporate a curved outer wall into a mass of rectangular cells, such as that seen in the present pueblo. On the other hand, the outer wall of the original pueblo may have been outside of rooms now occupied, for the village had been abandoned for some time before the colony returned to the site. TÂAAIYALANA. On the abandonment of the pueblos known as the Seven Cities of Cibola, supposed to have occurred at the time of the general uprising of the pueblos in 1680, the inhabitants of all the Cibolan villages sought refuge on the summit of Tâaaiyalana, an isolated mesa, 3 miles southeast from Zuñi, and there built a number of pueblo clusters. This mesa, otherwise known as “Thunder Mountain,” rises to the height of 1,000 feet above the plain, and is almost inaccessible. There are two foot trails leading to the summit, each of which in places traverses abrupt slopes of sandstone where holes have been pecked into the rock to furnish foot and hand holds. From the northeast side the summit of the mesa can be reached by a rough and tortuous burro trail. All the rest of the mesa rim is too precipitous to be scaled. Its appearance as seen from Zuñi is shown in Pl. LIX.