I camp in the vicinity of 10k' and use a 15*. It works. It's an old Kelty. Past due for an upgrade.

Edit: at that price, I'll have to try the magma. If my CO draw goes as planned I may be on a DIY hunt in late Oct in CO. Could be cold, and I'll want to keep the pack as light as possible.

Last edited by prm; 03/28/17.