A normal sinkhole discovered in Wyoming in the 1970s turned out to be chock-full of ancient treasures. The sinkhole was discovered at the base of the Big Horn Mountains in northern Wyoming and dubbed The Natural Trap Cave. Before the Bureau of Land Management (BLM) placed a grill over the top of the cave to protect the public, scientists rappeled to the bottom of the naturally cold environs to find several well-preserved remains of animals who plunged to their deaths from 12,000 to 23,000 years ago. Hosts Joe Bereta and Steve Zaragoza delve deeper into this story in this edition of SourceFed.