Secrets Of The Underground - American Stonehenge

(2017)

Available Now

Synopsis

While searching for shipwrecks on the bottom of Lake Michigan, archaeologists stumbled across a mysterious rock formation. No one could explain what it was or how it ended up 40 feet below the surface. Even more perplexing a possible man-made carving was uncovered on one of the rocks: and it looks like a mastodon. How did it get there? Why would a long-extinct creature be etched into a rock on the bottom of Lake Michigan? And what is the significance of the perplexing hexagon pattern of six rocks found near the center? Deploying state-of-the-art technology that captures the contours of these rocks in unprecedented detail, we explore the mystery of what some are calling "Underwater Stonehenge."

Directors

Rob Nelson

Production year

2017

Rating

TV-PG

Studio

Discovery

Runtime

60 minutes

Cast

Rob Nelson