In a zone about twenty miles in extent, stretching from Erdeven on the north-west to Tumiac in a south-easterly direction, and nowhere more than five miles in width, there is to be found the most remarkable group of megalithic remains, not only in France, but perhaps in the whole world. Not only are examples of every class of monument we have been describing, except circles, to be found here, but they are larger and finer examples than are generally to be met with elsewhere. Another point of interest also is that within the zone are found--if I am not mistaken--both a cemetery and a battle-field. At least in the neighbourhood of Locmariaker, which there seems no reason for doubting was the Dariorigum of the Romans, the capital of the Venetes in Cæsar's times,[413] all the monuments are more or less sculptured, and all the stones fashioned, not to say hewn. On the other hand, no stone in the neighbourhood of Carnac is hewn, or even fashioned, beyond splitting, and no sculptures of any class have been traced. The distinction is too marked to be accidental, and unless it can be made out that they belong to different ages, which appears to me most improbable, goes far to establish the conclusion at which we have arrived in previous chapters. To begin with the Carnac monument,[414] which is the best known and the most important. As will be seen by the woodcut on p. 352, it consists of two separate alignments, or great stone rows--one, that of Carnac, extending for nearly two miles in a direction nearly east and west; the other, that of Erdeven, at a distance of two miles and a half from that at Carnac, being little more than one mile in length. There is a third, but smaller, group at St.-Barbe, about a mile and a half due south of Erdeven; and numerous dolmens and tumuli are spread at intervals all over the plain.