HUMBOLDT COUNTY, California (CNN) -- Julia Hill is known as "Butterfly," but the delicate image of that nickname masks the young woman's hard-as-wood determination to save the world's largest privately owned stand of ancient Redwood trees from a timber company's chain saws.

Hill climbed one of the towering trees last December and she's been there ever since, living in a treehouse about 180 feet off the ground in northern California's Humboldt County.

A small army of supporters helped the activist weather a wild El Nino winter and the wrath of angry loggers. But the ultimate outcome of this story may be in the hands of Charles Hurwitz, the man who owns the land -- known as Headwaters Forest -- and has been offered $380 million for it.

As CNN's Don Knapp reports, the fate of the forest is up in the air and so is Butterfly.

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