Some of the folks we have worked with:

  • Wausau School District
  • Wausau Center for Visual Arts
  • The Wausau YWCA
  • Marathon Public Library System
  • The Boys & Girls Club of Wausau
  • Leigh Yawkey Woodson Art Museum
  • UW - Marathon County
  • Barron County Boys & Girls Club
  • Phillips Elementary
  • North Crawford Elementary
  • St. Anne’s Catholic School (Wausau)
  • Children's Museum of Eau Claire
  • St. Paul Catholic School
  • Mosinee School District
  • Texas-Hewitt School
  • Oshkosh Boys & Girls Club
  • Soldiers Grove Public Library

About Us

Founded in October, 2011 by a group of teachers, college professors, and business people, Colossal Fossils Inc. was designed to provide interactive natural history programs to schools and communities of Wisconsin. We are a registered 501(c)3 non-profit organization.


Our permanent location can be found in downtown Wausau, WI at the Wausau Center Mall.

Our Goal

It’s simple: To serve and educate as many people, primarily children, about our planet and the creatures that have lived on Earth throughout its 4.6 billion year history. We are an educational, science-based organization and we teach children about concepts such as evolution, life cycles, geology, history, root words, and biology.

Our Fossils

With a collection of museum quality fossils and fossil replicas, Colossal Fossils teaches people about fascinating plants and animals. The collection contains fossils from many dinosaurs, mammals, plants, and corals. We have fossils that range from tiny shells to the fearsome Tyrannosaurus rex. From mammoth tusks to giant bear skulls, and each year, the collection grows larger.

Our Programs

We have a wide range of different programs that can be modified to meet your specific needs. For a list of our available programs, which are designed to meet and exceed Wisconsin’s educational standards, click here.