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Humongous Fungus Festival 2019 - Crystal Falls, MI

On August 2-3 the Humongous Fungus Festival in Crystal Falls will celebrate the oldest, largest, contiguous life-form on earth living underneath Crystal Falls, Michigan!

This year’s festival will again features the jaw-dropping 100 sq. ft. mushroom pizza, guided forays for mushrooms and other edibles, a mushroom cook-off between local restaurants, mushroom cooking demonstrations, city-wide rummages, parade & street dance, kids games & crafts, and a softball tournament!

NEW THIS YEAR! Following the Parade on Friday will be Street Dance & Free Tye-Dying to fit our "Psychadelic 60's" theme! Bring your own tye-dye apparel or buy a special Fungus Fest T-Shirt! ALSO The Doors of Chicago will be in concert at the Crystal Theatre on Saturday night at 7:00 pm! Get your tickets ahead of time at

More information including parade theme, city-wide rummage sign up and other registrations forms can be found at!

The largest, contiguous life-form on Earth lives right here in Iron County! It’s a massive, 882,000 pound, 185-acre Armillaria Gallica fungus (also known as a “honey mushroom” or “shoestring mushroom”) that lives spread out between Crystal Falls and Alpha. It was discovered in the late 1980's and remeasured in 2017, confirmed to be 2X the size it was when it was originally discovered! There was a large fungus found in Oregon that's a different species and is NOT contiguous.