The collection of monuments on the battle-field of Northern Moytura is even more interesting than that on Moytura Cong, and almost justified the assertion of Petrie "that, excepting the monuments at Carnac, in Brittany, it is, even in its present state of ruin, the largest assemblage of the kind hitherto discovered in the world."[207] They have also this advantage, that the principal group, consisting of some sixty or seventy monuments, are situated on an elevated table-land, and in an area extending not more than a mile in one direction, and about half a mile in another. The country, too, is much less stony than about Cong, so that the monuments stand out better and have a more imposing look. Petrie examined and described sixty-four monuments as situated in or around this space, and came to the conclusion that originally there could not have been less than 200.[208] My impression is that there may have been 100, but hardly more, though, of course, this is only a guess, and the destruction of them is going on so rapidly that he may be right after all. In the space above described almost every variety of Megalithic art is to be found. There are stone cairns, with dolmens in their interiors--dolmens standing alone, but which have been evidently always exposed; dolmens with single circles; others with two or three circles of stones around them; and circles without dolmens or anything else in the centres. The only form we miss is the avenue. Nothing of the sort can now, at least, be traced, nor does it seem that any of the circles possessed such appendages. [Illustration: 58. Battle-field of Northern Moytura. Scale 6 inches to 1 mile.] The annexed woodcut (No. 58) will explain the disposition of the principal group. It is taken from the Ordnance Survey, and is perfectly correct as far as it goes, but being only on the 6-inch scale, is too small to show the form of the monuments.[209] In the centre is, or rather was, a great cairn, called Listoghil. It is marked by Petrie as No. 51, but having for years been used as a quarry for the neighbourhood, it is now so mined that it is difficult to make out either its plan or dimensions. Petrie says it is 150 feet in diameter; I made it 120. It was surrounded by a circle of great stones, within which was the cairn, originally, probably, 40 or 50 feet high. All this has been removed to such an extent as to expose the kistvaen or dolmen in its centre. Its cap stone is 10 feet square and 2 feet thick, and is of limestone, as are its supports. All the other monuments are composed of granite boulders. "Those who first opened it assert that they found nothing within but burnt wood and human bones. The half-calcined bones of horses and other animals were and are still found in this cairn in great quantities" (Petrie, p. 250). In a note it is said that a large spear-head of stone (flint?) was also found in this cairn. [Illustration: 59. Sketch-plan of Circle 27, Northern Moytura.]