Mastodon Fair

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Mastodon Fair


Hillsboro, Mo. The Mastodon Fair is an annual regional science and art competition held each March and featuring projects by students from kindergarten to 12th Grade at Jefferson College in Hillsboro, Missouri. Mastodon Fair bills itself as “the largest combined art and science fair in the United States.”   Learn more


United States of America


Jefferson, Washington, Crawford, and Franklin Counties in Missouri and Brown County in Illinois