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What we're looking at here Is a tiny crawl space
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Secrets of the Underground

What we're looking at hereIs a tiny crawl space, Basically branching offOf the side of the...

What we're looking at here
Is a tiny crawl space, Basically branching off
Of the side of the main chamber

Full Transcript

00:00:01.000 --> 00:00:03.729
What we're looking at here Is a tiny crawl space,
00:00:03.073 --> 00:00:07.999
Basically branching off Of the side of the main chamber.
Duration
8 seconds
Views
14
Timestamp in Movie
00:25:10
Uploaded
Jul 08, 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 • E02 Now, as the rumour shows - Secrets of the Underground 00:09
Now, as the rumour shows
S01 • E01 Walking up, down and around these hills - Secrets of the Underground 00:07
Walking up, down and around these hills
S01 • E03 But Mountain Lake never fluctuated like this, at least in recent memory, - Secrets of the Underground 00:08
But Mountain Lake never fluctuated like this, at least in re...
S01 • E03 Scientists believe it formed roughly 6,000 years ago - Secrets of the Underground 00:09
Scientists believe it formed roughly 6,000 years ago
S01 • E07 That's maybe four feet wide In diameter, - Secrets of the Underground 00:07
That's maybe four feet wide In diameter,
S01 • E08 Mark even makes us surrender our cellphones at the dock - Secrets of the Underground 00:08
Mark even makes us surrender our cellphones at the dock
S01 • E01 Like the Cahokia mounds in Illinois, - Secrets of the Underground 00:24
Like the Cahokia mounds in Illinois,
S01 • E02 Yes, actually, this was the premier brothel. - Secrets of the Underground 00:04
Yes, actually, this was the premier brothel.
S01 • E02 This entire street was known as Holliday Street originally - Secrets of the Underground 00:11
This entire street was known as Holliday Street originally
S01 • E08 These are some pretty serious measures to protect a few submerged stones. - Secrets of the Underground 00:05
These are some pretty serious measures to protect a few subm...
S01 • E03 At 3,800 feet above sea level, - Secrets of the Underground 00:07
At 3,800 feet above sea level,
S01 • E07 For any real purpose, - Secrets of the Underground 00:06
For any real purpose,
S01 • E08 So, I can't help but wonder, - Secrets of the Underground 00:05
So, I can't help but wonder,
S01 • E03 Most lakes in this region are much closer to sea level. - Secrets of the Underground 00:05
Most lakes in this region are much closer to sea level.
S01 • E02 It turns out that the first floor of the brothel was a restaurant - Secrets of the Underground 00:08
It turns out that the first floor of the brothel was a resta...
S01 • E08 But before I find out, it's time to cut the cameras. - Secrets of the Underground 00:04
But before I find out, it's time to cut the cameras.
S01 • E07 What was this Structure used for, - Secrets of the Underground 00:07
What was this Structure used for,
S01 • E03 So, the fact that this lake even exists here at all - Secrets of the Underground 00:06
So, the fact that this lake even exists here at all
S01 • E03 But the locals whose livelihoods have depended on it for decades - Secrets of the Underground 00:06
But the locals whose livelihoods have depended on it for dec...
S01 • E02 The place did a brisk business, - Secrets of the Underground 00:08
The place did a brisk business,