A "quinzhee" is a traditional Native American snow shelter developed for use in dry, cold-weather climates. A properly built quinzhee will maintain a temperature just above 32 degrees Fahrenheit even when outside temperatures plunge to -40 degrees below zero. Learn how it's done by joining Casey Anderson and the Grizzly Creek Films crew in the Yellowstone backcountry.

© MMIX Grizzly Creek Films, LLC

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