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He believes his tribe's prehistoric forefathers
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Secrets of the Underground

He believes his tribe'sprehistoric forefathers, hunter-gatherers who settledthis area...

He believes his tribe's
prehistoric forefathers, hunter-gatherers who settled
this area after the last ice age, placed these stones here
for a sacred purpose

Full Transcript

00:00:01.000 --> 00:00:03.052
He believes his tribe's prehistoric forefathers,
00:00:03.006 --> 00:00:06.092
hunter-gatherers who settled this area after the last ice age,
00:00:07.000 --> 00:00:10.052
placed these stones here for a sacred purpose.
Duration
11 seconds
Views
16
Timestamp in Movie
00:27:42
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 • E07 You have unique Architectural features here. - Secrets of the Underground 00:04
You have unique Architectural features here.
S01 • E02 Was this Serpent Mound simply a shrine for religious rituals - Secrets of the Underground 00:13
Was this Serpent Mound simply a shrine for religious rituals
S01 • E03 All we see is light, fluffy mud just laying in a flat plain, - Secrets of the Underground 00:08
All we see is light, fluffy mud just laying in a flat plain,
S01 • E01 So without convincing physical evidence to the contrary, - Secrets of the Underground 00:12
So without convincing physical evidence to the contrary,
S01 • E08 Anishinaabe culture, we refer to stones as animate objects - Secrets of the Underground 00:10
Anishinaabe culture, we refer to stones as animate objects
S01 • E07 Like a sundial not For the hour of the day, - Secrets of the Underground 00:07
Like a sundial not For the hour of the day,
S01 • E03 If any of those funnels had reopened up, - Secrets of the Underground 00:05
If any of those funnels had reopened up,
S01 • E02 This has baffled scientists for centuries - Secrets of the Underground 00:06
This has baffled scientists for centuries
S01 • E08 We refer to them as "mishoomis" - "grandfather". - Secrets of the Underground 00:04
We refer to them as "mishoomis" - "grandfathe...
S01 • E07 It was actually An astronomical tool, - Secrets of the Underground 00:07
It was actually An astronomical tool,
S01 • E01 The most likely alternative to human construction - Secrets of the Underground 00:06
The most likely alternative to human construction
S01 • E08 They reinforce that we have been here a long time - Secrets of the Underground 00:08
They reinforce that we have been here a long time
S01 • E02 I've always been fascinated by America's ancient earthen structures. - Secrets of the Underground 00:06
I've always been fascinated by America's ancient e...
S01 • E03 Searching for clues, Paki pilots our ROV away from the sealed holes... - Secrets of the Underground 00:05
Searching for clues, Paki pilots our ROV away from the seale...
S01 • E01 In fact, looking at the drone footage, - Secrets of the Underground 00:07
In fact, looking at the drone footage,
S01 • E02 Like Effigy Mounds National Monument in Iowa, - Secrets of the Underground 00:10
Like Effigy Mounds National Monument in Iowa,
S01 • E07 With the late summer Corn harvest, - Secrets of the Underground 00:08
With the late summer Corn harvest,
S01 • E01 I'm wondering if the Mima Mounds might be an extreme version - Secrets of the Underground 00:07
I'm wondering if the Mima Mounds might be an extreme ve...
S01 • E08 But how could a site 40ft underwater be sacred ground? - Secrets of the Underground 00:04
But how could a site 40ft underwater be sacred ground?
S01 • E02 But their beauty and impressiveness is overshadowed - Secrets of the Underground 00:06
But their beauty and impressiveness is overshadowed