Join the conversation
Log in or create an account to leave a comment
Log In
And we know from our ERT test that there's harder material beneath
the entire Mima Mound area
the entire Mima Mound area
Full Transcript
00:00:01.000 --> 00:00:02.084
And we know from our ERT test
00:00:02.092 --> 00:00:06.092
that there's harder material beneath
the entire Mima Mound area.
Want This Clip in HD?
Upgrade for HD/4K downloads and unlimited access. Upgrade now →
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...