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Here, let's go down Right through here
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Secrets of the Underground

Here, let's go downRight through here, See if we can getThe other side of it

Here, let's go down
Right through here, See if we can get
The other side of it

Full Transcript

00:00:01.000 --> 00:00:02.799
Here, let's go down Right through here,
00:00:02.008 --> 00:00:04.057
See if we can get The other side of it.
Duration
5 seconds
Views
13
Timestamp in Movie
00:24:33
Uploaded
Jul 13, 2025
Season
1
Episode
7
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 • E03 Last winter, it was one-and-a-half times bigger than Mountain Lake, - Secrets of the Underground 00:09
Last winter, it was one-and-a-half times bigger than Mountai...
S01 • E08 Having granted me special access, - Secrets of the Underground 00:10
Having granted me special access,
S01 • E01 That might be a stretch, - Secrets of the Underground 00:06
That might be a stretch,
S01 • E02 Then a friend texts me - Secrets of the Underground 00:11
Then a friend texts me
S01 • E01 When early explorers happened upon this spot in 1841, - Secrets of the Underground 00:14
When early explorers happened upon this spot in 1841,
S01 • E03 The reason? Multiple openings in the lake bed - Secrets of the Underground 00:07
The reason? Multiple openings in the lake bed
S01 • E07 My gosh. This is a structure. - Secrets of the Underground 00:05
My gosh. This is a structure.
S01 • E02 Namely, why is there a sealed-off tunnel - Secrets of the Underground 00:06
Namely, why is there a sealed-off tunnel
S01 • E08 The site that we're looking at is possibly a ceremonial site. - Secrets of the Underground 00:06
The site that we're looking at is possibly a ceremonial...
S01 • E03 But there are fundamental differences between Lost Lake and Mountain Lake. - Secrets of the Underground 00:05
But there are fundamental differences between Lost Lake and ...
S01 • E07 That's what we saw right there. That was the window. - Secrets of the Underground 00:05
That's what we saw right there. That was the window.
S01 • E02 As it turns out, - Secrets of the Underground 00:08
As it turns out,
S01 • E03 Lost Lake goes through the same cycle every year. - Secrets of the Underground 00:04
Lost Lake goes through the same cycle every year.
S01 • E07 As I explore This bizarre structure, - Secrets of the Underground 00:06
As I explore This bizarre structure,
S01 • E08 Mark and Hank suspect this rock formation may not only be man-made, - Secrets of the Underground 00:09
Mark and Hank suspect this rock formation may not only be ma...
S01 • E01 When the adventurers dug into them, though, - Secrets of the Underground 00:05
When the adventurers dug into them, though,
S01 • E03 The plug holes are lava tubes thousands of years old - Secrets of the Underground 00:07
The plug holes are lava tubes thousands of years old
S01 • E02 This was built in 1889 by a madam named Jennie Rogers. - Secrets of the Underground 00:05
This was built in 1889 by a madam named Jennie Rogers.
S01 • E01 So the mounds don't appear to be graves. - Secrets of the Underground 00:04
So the mounds don't appear to be graves.
S01 • E07 And it's not long before I Uncover an even stranger detail. - Secrets of the Underground 00:06
And it's not long before I Uncover an even stranger det...