Also go to the Colorado DOW website and look in the Hunting pages for their GMU maps, they have overlays for every region that shows elk summer and winter population locations. It's all FREE. Also, my wife and I have bull tags for unit 86 1st rifle, Oct 9-13, and need a partner if anyone has similar tags. Also unit 45 and unit 71 are good for elk as is 551. There are a lot of other good ones depending on where you want to hunt. The DOW website is the best FREE resource for info. There are so many pages there to help you out its unbelievable the amt of info they post. Come on let's hunt...
http://wildlife.state.co.us/hunt/