Pennsic War
The Pennsic War is an annual two week camping event held by the Society for Creative Anachronism between the kingdoms of the East and the Middle (the kingdoms are regional groups of the society). It is (or at least was) the single largest annual event of the SCA. It has been held each August in western Pennsylvania since 1972. Since the mid 1970s it has been held at Cooper's Lake Campground in Slippery Rock, PA.
External links
The Official Pennsic War web site