Wood stove . . . this works very well up in the mountains, at least below the Alpine zone. You need to be in a place where you can find or go down to bare dirt and of course an area where fires are allowed. You gather some rocks, fist size and above and make a little pile of them, maybe 6"-8" high with a central "chimney" 2" or 3" across. That's your stove. Look around that area and collect a bunch of tiny sticks, like pencil size. If it's a camping area where other people have had those giant "white man" fires. there will be lots of small debris. You put some fire starter stuff at the bottom of the chimney, add a few sticks, and light it. Put your cooking pot or tin can on top. insert additional sticks as necessary. I did that for years when I was a kid and hiked alone. Never carried a stove at all, which is as light as one can go.
__________________
Results matter