Complex sentence: The event was traditionally held at Camp Ozark Avalon, located in Boonville, Missouri but the 2011 event was moved to the Shriner's campground in Laquey, MO citing more suitable land.
Split into simpler sentences: The event was traditionally held at Camp Ozark Avalon, located in Boonville, Missouri. The 2011 event was moved to the Shriner's campground in Laquey, MO citing more suitable land.