Wild America — S4E2: Yellowstone Lake
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Yellowstone Lake has a vast underwater wilderness never seen by the two million annual visitors to this National Park. It is also the realm of a creature that forms the cornerstone of an entire aquatic ecosystem -- the brilliant Cutthroat Trout. A summer-long exploration by Marty Stouffer and crew begins in the remote Thorofare Region, our wildest land south of Alaska.
