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Several different native tribes
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Secrets of the Underground

Several different native tribes lived in this part of Ohioover the millennia, but none of...

Several different native tribes lived in this part of Ohio
over the millennia, but none of them left behind
any other sites that look even
remotely like this one

Full Transcript

00:00:01.000 --> 00:00:02.006
Several different native tribes
00:00:02.068 --> 00:00:05.028
lived in this part of Ohio over the millennia,
00:00:05.036 --> 00:00:07.072
but none of them left behind any other sites
00:00:07.008 --> 00:00:10.052
that look even remotely like this one.
Duration
11 seconds
Views
18
Timestamp in Movie
00:29:22
Uploaded
Jul 12, 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 As the sun rises... Wow, look at that. - Secrets of the Underground 00:04
As the sun rises... Wow, look at that.
S01 • E03 It looks a little bit like the sides of some of the hills in the Grand Canyon. - Secrets of the Underground 00:05
It looks a little bit like the sides of some of the hills in...
S01 • E08 We know for sure that 10,500 years ago, - Secrets of the Underground 00:14
We know for sure that 10,500 years ago,
S01 • E02 So, there is still a debate about who built the mound and why. - Secrets of the Underground 00:05
So, there is still a debate about who built the mound and wh...
S01 • E01 ERT made headlines in 2016 - Secrets of the Underground 00:11
ERT made headlines in 2016
S01 • E03 You may not think of Virginia as a hotbed of seismic activity, - Secrets of the Underground 00:08
You may not think of Virginia as a hotbed of seismic activit...
S01 • E02 But two tribes are the most likely candidates. - Secrets of the Underground 00:04
But two tribes are the most likely candidates.
S01 • E07 The presence of A historic complex of ruins. - Secrets of the Underground 00:04
The presence of A historic complex of ruins.
S01 • E03 In fact, Central and Southwestern Virginia - Secrets of the Underground 00:08
In fact, Central and Southwestern Virginia
S01 • E08 You're saying that that area was not underwater 10,000 years ago? - Secrets of the Underground 00:05
You're saying that that area was not underwater 10,000 ...
S01 • E01 It's a great tool for our investigation - Secrets of the Underground 00:06
It's a great tool for our investigation
S01 • E07 Were they built by colonists, Native americans, - Secrets of the Underground 00:08
Were they built by colonists, Native americans,
S01 • E02 They were hunter-gatherers who lived here from about 800BC to 1000AD. - Secrets of the Underground 00:07
They were hunter-gatherers who lived here from about 800BC t...
S01 • E08 5,000 years ago, the water overran that site again - Secrets of the Underground 00:09
5,000 years ago, the water overran that site again
S01 • E02 They left behind numerous burial mounds across southern Ohio, - Secrets of the Underground 00:09
They left behind numerous burial mounds across southern Ohio...
S01 • E01 Clay materials are highly conductive, - Secrets of the Underground 00:08
Clay materials are highly conductive,
S01 • E03 And between 2005 and 2008, when the lake began to noticeably disappear, - Secrets of the Underground 00:13
And between 2005 and 2008, when the lake began to noticeably...
S01 • E07 To set up a simple test That might provide a key clue. - Secrets of the Underground 00:05
To set up a simple test That might provide a key clue.
S01 • E01 We'll put a stick in every 4'. OK. - Secrets of the Underground 00:04
We'll put a stick in every 4'. OK.
S01 • E07 My goodness. The sun goes in, - Secrets of the Underground 00:09
My goodness. The sun goes in,