End of the Range: The Plight of the Proghorn

For 6,000 years, a pronghorn herd has migrated from present day Grand Teton National Park in Wyoming into the Upper Green River Valley, where the animals spend the winter before returning to the park in the spring. Over the past decade, a natural gas extraction boom has transformed the antelopes' winter range into a spider web of roads, drilling rigs and compressors.

Green TV | January 9, 2009

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