Most of the hillside was logged in the sixties so the re-growth is approaching thirty years in age. The successful re-growth above the contact is in a shallower gradient zone (probably thicker soil cover). The bare patches above the contact are much steeper slopes. The area was broadcast burned for silvicultural purposes. You can make out the charred stumps in the bare zones. The old-growth volume in this area was greater than 600 m3 per hectare. The current volume in the deforested bare zones is obviously a small fraction of that.