Thanks everyone.
This is the dominant herd bull in the mountains to the north side of Mt St Helens, he's managed to evade the hunters pretty well to get to this size. For those asking about the velvet, antlers are some of the fastest if not fastest growing tissue there is. The antler growth is spurred by hormones that increase when the days get longer, some growing as much as three inches in a day and they are very vascular providing a huge blood flow through them for the growth. Around here about the middle of August the bull elk have another hormonal change that cuts off the blood flow to the antlers and they begin to calcify. The outer sheath, or velvet, is then shed, most often being rubbed off on smaller trees. You can find plenty of these "rubs" in areas where elk are plentiful. Once those antlers harden then more hormones kick in as the elk go through the rutting season where they can loose over half their body weight competing to pass on their genes. Then later in the winter the antlers come off, or shed. I may not have everything stated exactly technically correct, but it gives you the main idea of what goes on. OK, that's it for today's wildlife biology lesson.