I am not sure but everytime we talk about putting playholes in around asheville the Army Corps of Engeeniers has to be notified and I believe a review of impact study must be filed. I have also heard that it is illeagal or a least a violation to move rocks in creeks and streams that the forest service is responsable for; there is a posting at the davidson that says you either should not move them or that is ileagal to move even the small stones. Best to check first
shawn
also unsure if it violates clean water act and in what way I do not know