[Shane in WI]

Any one have their checklist handy for a backpack hunt? 5 of us will be elk hunting (rifle) next month NW of Denver, CO. I have gone in the general area the past 5 years, but we hunted from a base camp w/ campers. This time we are packing everything in and out on foot. Just looking for help on what to bring. I have yet to find a suitable external frame pack and looking for suggestions with that as well. I have a good colemann 0 degree sleeping bag, but wonder if that will be warm enough?
Thanks, Shane