http://www.bensbackwoods.com/servlet/Detail?no=420

This is the one I carry and use. Pretty lightweight and cuts very well. I had a Swede saw years ago and it is just too fiddly. Another option, if you plan on a lot of sawing, is the 18" Dandy saw, they have them on Amazon last time I looked.

Hope that helps.
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No, I am not Bear Grylls, but I stayed at a Holiday Inn Express last night and Bear was there too!