What Came Out? • Earth.com What Came Out?

So what exactly was it that emerged from Ear Spring that day? Given the long and rich history of Yellowstone, there are plenty of contenders. Because this vast, 3,500-square-mile swathe of land is arguably the most ancient, as well as the oldest-official national park in America. And there’s little doubt that countless objects and artifacts have been lost there over the years. Photo credit: Westend61 / Getty Images

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