Great pics! Typical Colorado. Lemme guess - Mt Evans or Lost Creek? Spent most of my life in or near the Rockies - you won't need a firearm for grouse in N Montana or much of Alaska. You can kill all you can eat with a rock or a stick. That's why they are 'fool hens'. Same with fishing - carry a handline in your pocket for all the fish you can catch. In the summer 'survival' is very easy.
Richard