The great numbers of prehistoric people who lived on the moor are very remarkable. 'Tens of thousands of their habitations have been destroyed,' says Mr Baring-Gould, 'yet tens of thousands remain. At Post Bridge, within a radius of half a mile, are fifteen pounds. If we give an average of twenty huts to a pound, and allow for habitations scattered about, not enclosed in a pound, and give six persons to a hut, we have at once a population, within a mile, of 2,000 persons.' Perhaps they climbed so high because on the lower slopes the forest was thick, and wild beasts were more to be feared, though, according to tradition, they were certainly not free from danger on the moor; for 'wolves and winged serpents were no strangers to the hills or valleys.' All their possessions that we are aware of belong to the early Bronze Age, when flint was used in great quantities, and bronze was known, but was rare and very valuable. The amber pommel of a dagger, inlaid with gold pins, and part of a bronze dagger blade, were found in a barrow on Hameldon, and a few other bronze weapons have been discovered; flint implements in abundance. Great numbers of flint scrapers for cleaning the skins of animals, and small knives for cutting up meat, have been picked up; arrow-heads are scarce, and it would seem that they left very few celts or axes, and spear-heads. Of the exceedingly interesting remains, perhaps the most interesting--at any rate, to the uninitiated--is Grimspound. The boundary wall, which is double, encloses four acres; it is from ten to twelve feet thick, but not above five and a half feet in height. Within the circle are twenty-four hut-circles, and in some of them charcoal and fragments of pottery have been found. A brook, dipping under the walls, and passing through the enclosure, supplied the camp with water. Drizzlecombe, near Sheep's Tor, is rich in a variety of antiquities, for it has three stone rows, a large tumulus, a kistvaen, and a later relic--a miner's blowing-house. One of the avenues is two hundred and sixty feet long, and one is double for a part of the way, and each of the three starts from a menhir, or long stone. Near Merivale Bridge are two double stone rows, but the stones are small. Close by are a sacred circle, a kistvaen, a pound and hut-circles, and one cairn, besides the ruins of others that have been destroyed. It would be absurd to pretend to enter on such a wide subject here. Some idea of its extent may be gathered by considering one single branch of it: Mr Baring-Gould has stated that no fewer than fifty stone avenues have been observed in different parts of the moor. And hut-circles and ancient track-lines are unnumbered, although very many antiquities of all kinds have been destroyed when granite was wanted for rebuilding churches, or for making doorways or gate-posts, or even for mending roads.