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Ray have you seen what live stock does to a trial? an over used trail will get torn up in no time, which is what happens when people can put drop camps in. also they can bring in evasive speices, and other lil things but the trail damage is the main thing. so they might not be so much damage the woods, but they do wreck the trails on which you hike on.
just what we need is more bureaucracy and regulation in hunting