Butler County, Pennsylvania

Reports:

• August 2016 (Class B) - Knocks and responses heard near Muskrat Cove campground, Moraine State Park
• May 2015 (Class B) - Fisherman on Lake Arthur startled by series of possible wood knocks and rock clacks
• February 1992 or 93 (Class A) - Campers have close encounter with large, hairy creature
• 1977 (Class A) - Midnight traveler watches upright creature cross road

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