I am going to be hiking Whitney next week. Will be flying in so I have to buy white fuel when I get to LA. Even the smallest quart can will be much more than I need and I will have to leave behind. Does anyone know if there is a program where I could leave for the next hikers (or vise verse). I hiked the Grand Canyon a few years ago and ended up leaving over half a quart as well. I always thought it would be a good idea to have some type of exchange program.