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And in Ohio
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Secrets of the Underground

And in Ohio, mystery shrouds an ancient moundshaped like a serpent

And in Ohio, mystery shrouds an ancient mound
shaped like a serpent

Full Transcript

00:00:01.000 --> 00:00:02.002
And in Ohio,
00:00:02.028 --> 00:00:06.000
mystery shrouds an ancient mound shaped like a serpent.
Duration
6 seconds
Views
29
Timestamp in Movie
00:00:23
Uploaded
Jul 09, 2025
Season
1
Episode
2
Genres
documentary

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Movie Summary

Using cutting-edge technologies such as ground penetrating radar (GPR), LIDAR (Light Detection and Ranging), and 3-D imaging, scientists research fascinating underworlds of secret tunnel networks, ancient structures, and bizarre g...
S01 • E01 And in western Washington, - Secrets of the Underground 00:07
And in western Washington,
S01 • E02 Could this have been the focal point of bloody human sacrifices? - Secrets of the Underground 00:05
Could this have been the focal point of bloody human sacrifi...
S01 • E03 And in Southwestern Virginia, - Secrets of the Underground 00:08
And in Southwestern Virginia,
S01 • E08 Meanwhile, at the bottom of Lake Michigan - Secrets of the Underground 00:07
Meanwhile, at the bottom of Lake Michigan
S01 • E01 Who, or what, built the mysterious Mima Mounds? - Secrets of the Underground 00:04
Who, or what, built the mysterious Mima Mounds?
S01 • E02 I'll use a magnetometer to see inside the snake. - Secrets of the Underground 00:05
I'll use a magnetometer to see inside the snake.
S01 • E03 What caused a 47-acre mountain lake to suddenly disappear? - Secrets of the Underground 00:05
What caused a 47-acre mountain lake to suddenly disappear?
S01 • E01 Now, an advanced scanning process will turn them inside out, - Secrets of the Underground 00:07
Now, an advanced scanning process will turn them inside out,
S01 • E02 Hidden just below the Earth's surface, - Secrets of the Underground 00:06
Hidden just below the Earth's surface,
S01 • E08 3-D photogrammetry could uncover new clues - Secrets of the Underground 00:06
3-D photogrammetry could uncover new clues
S01 • E02 And today, we finally have the tools to unlock them. - Secrets of the Underground 00:04
And today, we finally have the tools to unlock them.
S01 • E01 Hidden just below the earth's surface, - Secrets of the Underground 00:06
Hidden just below the earth's surface,
S01 • E08 Hidden just below the Earth's surface, - Secrets of the Underground 00:07
Hidden just below the Earth's surface,
S01 • E03 Hidden just below the Earth's surface, - Secrets of the Underground 00:05
Hidden just below the Earth's surface,
S01 • E01 And today, we finally have the tools to unlock them. - Secrets of the Underground 00:04
And today, we finally have the tools to unlock them.
S01 • E02 I'm Rob Nelson, a scientist using state-of-the-art technology - Secrets of the Underground 00:07
I'm Rob Nelson, a scientist using state-of-the-art tech...
S01 • E08 And today, we finally have the tools to unlock them. - Secrets of the Underground 00:04
And today, we finally have the tools to unlock them.
S01 • E03 ..and today, we finally have the tools to unlock them. - Secrets of the Underground 00:04
..and today, we finally have the tools to unlock them.
S01 • E01 Look at that! Whoa! I think this is it! - Secrets of the Underground 00:04
Look at that! Whoa! I think this is it!
S01 • E01 I'm Rob Nelson, a scientist using state of the art technology - Secrets of the Underground 00:07
I'm Rob Nelson, a scientist using state of the art tech...