Welcome to the Central Iowa Mineral Society!

The Central Iowa Mineral Society, founded in 1946, is a civic organization of individuals who study rocks, minerals, fossils, geology and the environment. CIMS conducts monthly lectures and programs, field trips throughout the year, picnics and rock swaps. All ages and level of experience are welcome.

CIMS has an active presence in the Des Moines community. The group sponsors numerous rock shows, displays material in schools and museums, volunteers many hours to educate the public and civic groups, sets up the geologic trail at the Saylorville Gorge and recently supported the exhibit "Hatching the Past" at the State Historical Building.

The mission of CIMS is to educate its members and others about rocks, minerals, fossils and related topics through programs, field trips collecting and sharing.