Where is derwud when you need him? He would tell you that if you're camping anywhere along the 80 between Laramie and Evanston you can just leave that black valve open.
(It's an old (dumb) joke and not a jab at WY. He says it about just about any town you can think of.)
Well, when Landdisaster, do as the Landdisasterians do... dump it anywhere..