My character kills a goat in the mountains and eats some of it for dinner. What kind of plant or mineral could he use to preserve the meat to carry with him so that it stays fresh and doesn't become contaminated? What kind of process would he use?
He can only use things that could grow in rocky mountainous areas or something that he brought with him for that purpose. His only other "tools" are a knife and fire.
Is there any basis to believe that preserving meat in this circumstance is even possible?