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It's basically a rubble pile
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Secrets of the Underground

It's basically a rubble pile that continually isgetting clogged and unclogged

It's basically a rubble pile that continually is
getting clogged and unclogged

Full Transcript

00:00:01.000 --> 00:00:02.092
It's basically a rubble pile
00:00:03.000 --> 00:00:05.006
that continually is getting clogged and unclogged.
Duration
6 seconds
Views
15
Timestamp in Movie
00:43:02
Uploaded
Jul 10, 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 • E08 The discovery of these ancient drive lanes gives us - Secrets of the Underground 00:08
The discovery of these ancient drive lanes gives us
S01 • E02 So, for the Fort Ancient farmers living here 1,000 years ago, - Secrets of the Underground 00:12
So, for the Fort Ancient farmers living here 1,000 years ago...
S01 • E03 So that leaves one final question, - Secrets of the Underground 00:09
So that leaves one final question,
S01 • E08 Their size and scale - Secrets of the Underground 00:08
Their size and scale
S01 • E01 And you could never have seen this without running a model like this, - Secrets of the Underground 00:07
And you could never have seen this without running a model l...
S01 • E03 Well, not exactly, but it can save itself. - Secrets of the Underground 00:05
Well, not exactly, but it can save itself.
S01 • E01 Yeah, it's one important component of the puzzle we're trying to solve. - Secrets of the Underground 00:05
Yeah, it's one important component of the puzzle we...
S01 • E03 Since my visit, further research has revealed - Secrets of the Underground 00:07
Since my visit, further research has revealed
S01 • E02 Maybe that missing coil was throwing off the placement - Secrets of the Underground 00:10
Maybe that missing coil was throwing off the placement
S01 • E08 Maybe future excavations will reveal more - Secrets of the Underground 00:09
Maybe future excavations will reveal more
S01 • E01 When I started this investigation, - Secrets of the Underground 00:05
When I started this investigation,
S01 • E03 And these cycles effectively filter out the sediment - Secrets of the Underground 00:08
And these cycles effectively filter out the sediment
S01 • E08 But our scientific analysis of this long-lost rock formation - Secrets of the Underground 00:08
But our scientific analysis of this long-lost rock formation
S01 • E01 But technology may finally be revealing - Secrets of the Underground 00:37
But technology may finally be revealing
S01 • E02 Our scientific analysis of Serpent Mound has revealed secrets - Secrets of the Underground 00:09
Our scientific analysis of Serpent Mound has revealed secret...
S01 • E03 So the lodge has decided not to try to seal the leaks artificially, - Secrets of the Underground 00:08
So the lodge has decided not to try to seal the leaks artifi...
S01 • E08 Like the fact that the Great Lakes were once much smaller - Secrets of the Underground 00:05
Like the fact that the Great Lakes were once much smaller
S01 • E02 For starters, I was able to confirm that the mound - Secrets of the Underground 00:10
For starters, I was able to confirm that the mound
S01 • E08 That mastodons and people crossed paths - Secrets of the Underground 00:06
That mastodons and people crossed paths
S01 • E03 With a little luck, there still may be generations - Secrets of the Underground 00:06
With a little luck, there still may be generations