Travis Johnson wrote:I learned how to build mine from a book the Maine Game Wardens used to give out to deer hunters called, "You Alone in the Maine Woods". They gave it away back in the 1980's, but is tough to find now. It was quite a resource and got me through boy scouts. I saw one a few years ago, but $3 for it...they gave them away, but now wished I had not been so cheap and grabbed it. If anyone sees one, I do recommend it.