It seems to me, that if a trail entity undertakes to erect and maintain, a shelter along the trail, that they would be required by the powers that be, to provide and maintain a privy as well. As has been clearly and inarguably demonstrated in the Great Smoky Mountains National Park, putting up shelters with no privies leads to a big mess. The shelter areas have been trashed by people who are required to either stay in the shelter or camp beside it, and have been provided with no central facility to deposit their bodily wastes into. Individual catholes will only be satisfactory with dispersed camping, period. It is not just the Smokies, though they stand out due to their policy of no dispersed camping, and now fees for campers. There are other privyless shelters outside the park that have surface problems as well. A shelter is a human aggregation unit. It becomes a surface feces, urine, and toilet paper aggregation unit without a privy. Nastiness in our woods sponsored by those preaching leave no trace. I really don't get it. What am I missing here?