Here are some things written by a fellow a met a couple times, both before and after his "big" walk. An interesting guy. Before the walk I really wondered what he was out to prove; when it was over he gave a very good sermon and was more upbeat than I expected. (Don basically set out to walk to every Church of the Brethren in the US)
http://www.newcommunityproject.org/p...m_pavement.pdf