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If you were standing here 4,500 years ago
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Secrets of the Underground

If you were standing here4,500 years ago, you would beseeing nothing but water

If you were standing here
4,500 years ago, you would be
seeing nothing but water

Full Transcript

00:00:01.000 --> 00:00:04.024
If you were standing here 4,500 years ago,
00:00:04.032 --> 00:00:06.048
you would be seeing nothing but water.
Duration
6 seconds
Views
17
Timestamp in Movie
00:30:17
Uploaded
Jul 13, 2025
Season
1
Episode
8
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 Evolving from nomadic wanderers - Secrets of the Underground 00:08
Evolving from nomadic wanderers
S01 • E03 So we've moved the ROV from the old funnels that were repaired. - Secrets of the Underground 00:05
So we've moved the ROV from the old funnels that were r...
S01 • E08 To give me a better visual understanding on how lake levels have changed over time, - Secrets of the Underground 00:08
To give me a better visual understanding on how lake levels ...
S01 • E01 The thing is, this has never been done before out here. - Secrets of the Underground 00:04
The thing is, this has never been done before out here.
S01 • E02 And that evolution is clear in the second native culture - Secrets of the Underground 00:09
And that evolution is clear in the second native culture
S01 • E01 With the stakes in place, we run our cable - Secrets of the Underground 00:07
With the stakes in place, we run our cable
S01 • E03 ..a fast-moving flow of water that looks like it leads to an opening. - Secrets of the Underground 00:05
..a fast-moving flow of water that looks like it leads to an...
S01 • E07 Better known on the christian Calendar as easter. - Secrets of the Underground 00:06
Better known on the christian Calendar as easter.
S01 • E08 If you look at the type of beach, the rocks, - Secrets of the Underground 00:15
If you look at the type of beach, the rocks,
S01 • E02 They lived in this area from about 1000AD to 1750AD, - Secrets of the Underground 00:10
They lived in this area from about 1000AD to 1750AD,
S01 • E03 It looks like Mountain Lake is still vanishing right before our eyes. - Secrets of the Underground 00:06
It looks like Mountain Lake is still vanishing right before ...
S01 • E01 OK. I'm hoping it shows something, gives us some reading, - Secrets of the Underground 00:07
OK. I'm hoping it shows something, gives us some readin...
S01 • E02 It seems conceivable that they would have been capable - Secrets of the Underground 00:06
It seems conceivable that they would have been capable
S01 • E03 I think we've found a place - Secrets of the Underground 00:05
I think we've found a place
S01 • E08 What happens is, the waves keep undercutting the bluff - Secrets of the Underground 00:08
What happens is, the waves keep undercutting the bluff
S01 • E07 My goodness, - Secrets of the Underground 00:05
My goodness,
S01 • E02 But there's little evidence anywhere else that the Fort Ancients - Secrets of the Underground 00:07
But there's little evidence anywhere else that the Fort...
S01 • E03 But where's the water going and can it be stopped before it's too late? - Secrets of the Underground 00:05
But where's the water going and can it be stopped befor...
S01 • E01 Current pulses into the earth, and data starts rolling in... - Secrets of the Underground 00:06
Current pulses into the earth, and data starts rolling in...
S01 • E08 Taking away the sand and the gravel and all the little stuff - Secrets of the Underground 00:07
Taking away the sand and the gravel and all the little stuff