It is more than doubtful whether Dartmoor was ever covered with trees. No doubt there have been trees in the bottoms, and indeed oak has been taken from some of the bogs; but the charcoal found in the fire-pits of the primitive inhabitants of the moor in the Bronze Age shows that, even in the prehistoric period, the principal wood was alder, and that such oak as there was did not grow to a large size, and was mainly confined to the valleys that opened out of the moor into the lowlands. Up these, doubtless, the forest crept. Elsewhere there may have been clusters of stunted trees, of which the only relics are Piles and Wistman's Wood. There were some very fine oaks at Brimpts, and also in Okehampton Park, but these were cut down during the European war with Napoleon. After the wood at Brimpts had fallen under the axe, it was found that the cost of carriage would be so great that the timber was sold for a mere trifle, only sufficient to pay for the labour of cutting it down. The forest is divided into four quarters, in each of which, except the western, is a pound for stray cattle. Formerly the Forest Reeve privately communicated with the venville men when he had fixed a day for a "drift," which was always some time about midsummer. Then early in the morning all assembled mounted. A horn was blown through a holed stone set up on a height, and the drift began. Cattle or horses were driven to a certain point, at which stood an officer of the Duchy on a stone, and read a proclamation, after which the owners were called to claim their cattle or ponies. Venville tenants removed them without paying any fine, but all others were pounded, and their owners could not recover them without payment of a fine. The Duchy Pound is at Dunnabridge, where is a curious old seat within the inclosure for the adjudicator of fines and costs. It is apparently a cromlech that has been removed or adapted. The Duchy now lets the quarters to the moormen, who charge a small fee for every sheep, bullock, or horse turned out on the moor not belonging to a venville man, and for this fee they accord it their protection.