PARADISE, Calif. (KGO) -- Wildfires are typically described in terms of the number of acres burned. Mathematically, an acre is equal to 43,560 square feet.
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That's approximately the size of a football field, minus the end zones.
For comparison, the City of San Francisco, at 46.87 square miles, is nearly 30,000 acres.
Yosemite National Park covers 761,266 acres.
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