At the entrance of this great circle the enclosing embankment curves outward on either side for a distance of 100 feet, leaving a level way between the ditches, 80 feet wide. The earthen mound, which is here higher than at any other point, measures about 30 feet from the bottom of the ditch to the summit. The area of the enclosure is so nearly a perfect level that Mr. J. M. Dennis, to whose intimate local knowledge I was indebted for a thorough survey of the works, informed me that he had observed during the rains of the previous spring the water stood at a uniform level nearly to the edge of the ditch. In the centre of this enclosure is an earthen mound, still called “The Eagle.” Mr. Squier says of it: “It much resembles some of the animal-shaped mounds of Wisconsin, and was probably designed to represent a bird with expanded wings.” It has been opened and found to contain a hearth, or “altar.” The fact is important; as it distinguishes it in this respect essentially from the emblematic mounds of Wisconsin, and tends to confirm the idea that the great circle and its related groups of earthworks all bore some reference to sacred games, or other strange rites of religion, once practised within their circumvallations. But successive excavations have greatly marred the original contour of the mound; and now that, with a view to the preservation of the principla earthwork, it has been secured as the Licking County fair ground, the erection of a grand stand on the summit of the Eagle Mound has contributed still further to obscure the traces of its primary form.