Kristan T. Harris

January 14, 2014

(TheRundownLive) Evidence recently unearthed shows that Lake Michigan may have a Stonehenge structure on its floor alongside a boulder with a prehistoric carving of a mastodon.

The sighting happened when Mark Holley, a professor of underwater archaeology at Northwestern Michigan University College and his colleague Brian Abbott voyaged across the lake in a ship furnished with sonar equipment with intent to examine old shipwrecks.

While combing Grand Traverse Bay they observed unique rock formations resembling Stonehenge, and rocks with strange engravings, one which Holley believes to be a Mastodon.

“When you see it in the water, you’re tempted to say this is absolutely real,” Holley told reporters.

Experts shown pictures of the boulder holding the mastodon markings have asked for more evidence before confirming the markings are an ancient petroglyph, said Holley.

“They want to actually see it,” he said.

The formation, if authenticated, wouldn’t be completely out the ordinary. Stone circles and other petroglyph sites are located in the Great Lakes area.

Ancient structures underneath large masses of water is not all that uncommon around the planet. There are over 100 cities at the bottom of the Mediterranean Sea and even more at the bottom of our oceans.

This article originally appeared on TheRundownLive.com and was used with permission.