Hiking
From Forestlake_wiki
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[http://www.americanhiking.org/ntd.aspx NATIONAL TRAILS DAY® 2009] | [http://www.americanhiking.org/ntd.aspx NATIONAL TRAILS DAY® 2009] | ||
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+ | [http://www.extension.umn.edu/distribution/naturalresources/DD6371.html Recreational Trail Design and Construction] |