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There's one final theory that's been floated
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Secrets of the Underground

There's one final theorythat's been floated about the purpose of Serpent Moundthat I'd...

There's one final theory
that's been floated about the purpose of Serpent Mound
that I'd like to test

Full Transcript

00:00:01.000 --> 00:00:03.016
There's one final theory that's been floated
00:00:03.024 --> 00:00:06.072
about the purpose of Serpent Mound that I'd like to test.
Duration
7 seconds
Views
13
Timestamp in Movie
00:41:18
Uploaded
Jul 13, 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 • E07 You interpret This as christ or lord. - Secrets of the Underground 00:04
You interpret This as christ or lord.
S01 • E01 Gophers will not build mounds - Secrets of the Underground 00:06
Gophers will not build mounds
S01 • E03 It could be ground seepage, but we can test the water. - Secrets of the Underground 00:05
It could be ground seepage, but we can test the water.
S01 • E08 And hundreds of miles away, under a completely different lake, - Secrets of the Underground 00:11
And hundreds of miles away, under a completely different lak...
S01 • E02 I need to get another look at it, a different look, - Secrets of the Underground 00:06
I need to get another look at it, a different look,
S01 • E07 It's not the same, necessarily, As what we saw at gungywamp... - Secrets of the Underground 00:04
It's not the same, necessarily, As what we saw at gungy...
S01 • E03 If I can trace this water back to the lake, - Secrets of the Underground 00:07
If I can trace this water back to the lake,
S01 • E01 If there's something hard to get through, - Secrets of the Underground 00:07
If there's something hard to get through,
S01 • E07 Which would be "Jesus lord." - Secrets of the Underground 00:06
Which would be "Jesus lord."
S01 • E02 But I can only do it right before sunset. - Secrets of the Underground 00:04
But I can only do it right before sunset.
S01 • E03 And finally solve the mystery of where all that water is disappearing to. - Secrets of the Underground 00:06
And finally solve the mystery of where all that water is dis...
S01 • E01 And we know from our ERT test - Secrets of the Underground 00:07
And we know from our ERT test
S01 • E07 But as I take a closer look At one of the illustrations, - Secrets of the Underground 00:06
But as I take a closer look At one of the illustrations,
S01 • E02 Sometimes you have to step back, get a bigger perspective. - Secrets of the Underground 00:06
Sometimes you have to step back, get a bigger perspective.
S01 • E08 I can make a plausible argument that it's a hunting structure - Secrets of the Underground 00:08
I can make a plausible argument that it's a hunting str...
S01 • E03 I grab a sample from the stream to compare it to the lake water... - Secrets of the Underground 00:05
I grab a sample from the stream to compare it to the lake wa...
S01 • E07 Than I could have imagined. - Secrets of the Underground 00:05
Than I could have imagined.
S01 • E01 Now I can also see it, below the layer of larger stone. - Secrets of the Underground 00:05
Now I can also see it, below the layer of larger stone.
S01 • E02 All right, we're gonna launch this thing, get a drone's-eye view. - Secrets of the Underground 00:04
All right, we're gonna launch this thing, get a drone&#...
S01 • E08 Dr O'Shea explains that drive lanes had been used by hunters - Secrets of the Underground 00:11
Dr O'Shea explains that drive lanes had been used by hu...