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Pine Mountain Trail/Trails -

http://www.pinemountaintrail.org/?page=7 - Here you can order the nice trail map with all of the mileages and campsites on it.  This one would be suggested to take along if you are hiking.

http://www.troop629.org/forms/hikes/pine_mountain_trail.jpg - This map is free, while it is a great map it doesn't have the complete mileages on it, possibly not all the campsites and would be lacking some other useful but not mandatory information.  

You could print the free map out and get by with no problem, but the official map is a nice waterproof and tear resistant Tyvek paper.  Also it's nice to be able to keep up with your complete mileage.