There are marvels (both natural and manmade) hidden all over the state of Ohio. Bu few people are aware that Ohio is also home to the largest accessible glacial grooves in the world. You can find them on Kelleys Island, and they’re a must-see if you get a chance to travel to the Lake Erie Islands.

They’re absolutely fascinating to see, as they’re definite proof of an important piece of history. Take a look:

Measuring 400 feet long, 35 feet wide and 15 feet deep, the Glacial Grooves State Memorial attracts visitors from around the world.

Daniel Hazard/YouTube

About 35,000 years ago, the grooves were formed by a slow-moving, massive glacier that created the Great Lakes and Lake Erie Islands.

Virginia Hill/Flickr

The glacial grooves didn’t become a popular attraction until 1972, after they were excavated to uncover them in their entirety.

Ohio Sea Grant/Flickr

Today, you can explore the grooves from different perspectives via a winding series of steps and footbridges that loop around the upper rim of them.

Britt Reints/Flickr

This national landmark is truly awe-inspiring (and it’s free of charge to see!) Make a trip to Kelleys Island and see this rare, geological phenomenon for yourself.

Benny Mazur/Flickr

To get a bird’s eye view of the glacial grooves and an idea of just how massive they are, check out the video below by YouTube user Daniel Hazard:

 

Daniel Hazard/YouTube

Virginia Hill/Flickr

Ohio Sea Grant/Flickr

Britt Reints/Flickr

Benny Mazur/Flickr

Have you ever been to Glacial Grooves State Memorial? You’ll find it at 739 Division St., Kelleys Island, OH 43438. If so, let us know what your experience was like!

And for more natural (and manmade) wonders in Ohio, check out our previous article, 12 Marvels In Ohio That Must Be Seen To Be Believed.

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