The reason we have to refrigerate eggs nowadays is that they are washed for sanitary reasons during their processing. When a chicken lays an egg, there is something like a mucous coating that helps the hen pass the egg out. If you leave that mucous coating on, and let it dry, the egg is sealed shut and protected and doesn't need to be refrigerated. BUT in industrialized nations, we wash the eggs during processing and packaging to remove things like sand, dirt, feces, feathers, etc (which are mostly present due to the overcrowding of laying hens, hens in better conditions sit on cleaner eggs). So... I don't know what you'd do about hiking with eggs, I guess I wouldn't do it personally. Being out in the middle of nowhere is NOT the place you'd want to get sick from something preventable. For protein, I guess I'd bring peanut butter, jerky and soy protein bars. HTH.