The woolly mammoth was designated the official state fossil of Alaska in 1986. Giant grass-eaters of the Ice Age tundra, the woolly mammoth stood 10-12 feet (3-3.7 meters) tall at the shoulder and weighed 6-8 tons.
Mammoth skeleton photo by John Kannenberg on Flickr - noncommercial use permitted with attribution / no derivative works. See All State Fossils.
Nebraska also designates the mammoth as a state symbol, and Michigan recognizes the giant mastodon. What's the difference between a mammoth and a mastodon? Mastodons had straighter tusks than the mammoth, and both the body and head of the mastodon is longer and squatter than the woolly mammoth (its back doesn't slope like a mammoth's).