Try carrying A Nalgene bottle(1 liter wide mouth)filled with trail mix.And when its empty you have another water carrier.By the time it is empty you should have found a source of food.Also consider honey.It NEVER spoils,but just crystalizes.Jars of honey have been found in Egyptian tombs that were still good.How is that for shelf life? <img src="images/graemlins/grin.gif" alt="" />