
16/09/2013
What strange forces saved one isolated section along the Upper Mississippi River from the repeated crushing and scouring effects of glaciers during the last two million years? And what pre-Ice Age throwbacks survived here in this unique geologic refuge that holds more Native American effigy mounds, petroglyph caves, strange geological features, and rare species than anywhere in the Midwest? These questions and more are answered in this captivating new documentary. A team of scientists embarks on a journey of exploration to expose both the science and threats behind three unique features of the zone - rare plants and animals, odd geological phenomenon, and striking remnants of a Native American pilgrimage like no other.

Armund Bartz
as Himself

Dan Bertalan
as Himself

Mark Bishop
as Himself

Ryan Bishop
as Himself

Ernie Boszhardt
as Himself

Abbie Church
as Herself

George Howe
as Himself

Darcy Kind
as Herself

Jim Knox
as Himself

Rob Nelson
as Himself

Loran Nordgren
as Himself

Ryan Perroy
as Himself

Jim Theler
as Himself

Tim Yager
as Himself
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