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So, the rubble field I saw on my dive
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Secrets of the Underground

So, the rubble field I saw on my dive wasn't covering holesin the lake bottom, the rubble...

So, the rubble field I saw on my dive wasn't covering holes
in the lake bottom, the rubble field is the lake bottom

Full Transcript

00:00:01.000 --> 00:00:03.004
So, the rubble field I saw on my dive
00:00:03.012 --> 00:00:05.006
wasn't covering holes in the lake bottom,
00:00:05.068 --> 00:00:08.048
the rubble field is the lake bottom.
Duration
8 seconds
Views
14
Timestamp in Movie
00:40:28
Uploaded
Jul 09, 2025
Season
1
Episode
3
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 • E02 This is a surprising development, - Secrets of the Underground 00:09
This is a surprising development,
S01 • E07 Valued at $15,000 each. - Secrets of the Underground 00:04
Valued at $15,000 each.
S01 • E08 So, if this is a mastodon carving, - Secrets of the Underground 00:08
So, if this is a mastodon carving,
S01 • E03 And it could have dozens of cracks, crevices and holes hidden within it - Secrets of the Underground 00:08
And it could have dozens of cracks, crevices and holes hidde...
S01 • E01 You're right, but it's not one gopher doing these in short order. - Secrets of the Underground 00:04
You're right, but it's not one gopher doing these ...
S01 • E02 But Brad sees this carving as strong evidence - Secrets of the Underground 00:08
But Brad sees this carving as strong evidence
S01 • E01 It's many generations, over hundreds of years. - Secrets of the Underground 00:04
It's many generations, over hundreds of years.
S01 • E07 Every detail is preserved, - Secrets of the Underground 00:05
Every detail is preserved,
S01 • E03 But if that's true, - Secrets of the Underground 00:06
But if that's true,
S01 • E08 Why were these rocks placed in a perfect hexagonal shape? - Secrets of the Underground 00:04
Why were these rocks placed in a perfect hexagonal shape?
S01 • E01 It sounds crazy, but Jennifer thinks - Secrets of the Underground 00:08
It sounds crazy, but Jennifer thinks
S01 • E02 You say that the snake represents this underworld, - Secrets of the Underground 00:06
You say that the snake represents this underworld,
S01 • E07 If the irish did Reach north america, - Secrets of the Underground 00:06
If the irish did Reach north america,
S01 • E08 To find out, I'm meeting up with archaeologist Dr John O'Shea. - Secrets of the Underground 00:05
To find out, I'm meeting up with archaeologist Dr John ...
S01 • E01 The key is, the size of the cobbles we're finding. - Secrets of the Underground 00:04
The key is, the size of the cobbles we're finding.
S01 • E02 We know American Indians built shrines to try to draw on - Secrets of the Underground 00:11
We know American Indians built shrines to try to draw on
S01 • E03 So I head into the woods downhill of the ridge - Secrets of the Underground 00:05
So I head into the woods downhill of the ridge
S01 • E07 What I'm looking for In this text is anything. - Secrets of the Underground 00:07
What I'm looking for In this text is anything.
S01 • E08 Recently, he made a discovery in nearby Lake Huron - Secrets of the Underground 00:07
Recently, he made a discovery in nearby Lake Huron
S01 • E01 Gophers can't move something like this through their burrows. - Secrets of the Underground 00:05
Gophers can't move something like this through their bu...