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A group of about 150 bison graze near a heavily trafficked road near Jacob’s Lake. (Photo by Kianna Gardner/Cronkite News)

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Hunters may be solution to reducing destructive bison herd at Grand Canyon

A spring used to rush through a hillside on the North Rim of the Grand Canyon, nourishing bats, mule deer and other wildlife — that is, until bison trampled the watering hole into a mud puddle.