Mysteries of the Driftless
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.
Género: Documental
Emitir: Armund Bartz, Dan Bertalan, Mark Bishop, Ryan Bishop, Ernie Boszhardt, Abbie Church, George Howe, Darcy Kind, Jim Knox, Rob Nelson, Loran Nordgren, Ryan Perroy, Jim Theler
Tripulación: Dan Bertalan (Producer), Rob Nelson (Director), Rob Nelson (Writer), Timothy S. Jacobson (Writer), Dan Bertalan (Camera Operator)
Palabra clave:
Mysteries of the Driftless 2013
biology
minnesota
wisconsin
iowa
cave
ice age
illinois
drift
ecology
geology
driftless area
glaciers
hydrology
karst
algific talus slope
trout
streams
watercress
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