GeoFair 2026. The largest IN-KY-OH Gem, Mineral, Fossil & Jewelry Show.
Sat, May 16
|Butler County Fairground Event Center
A family friendly event of all things Gem, Mineral, Fossil & Jewelry. Including 40 exhibits: Celebrating 250 years of America’s Minerals & Fossils
Time & Location
May 16, 2026, 10:00 AM – May 17, 2026, 5:00 PM
Butler County Fairground Event Center, 1715 Fairgrove Ave, Hamilton, OH 45011, USA
About the event
See Treasures From Nine Outstanding Museums
At GeoFair – May 16 & May 17 At Butler County Fairgrounds
You would have to travel from Indiana to Maine to see all the breath-taking mineral and fossil specimens featured at GeoFair 2026. This year’s roster of outstanding museum collections on display includes the Cincinnati Museum Center, the A.E. Seaman Museum at Michigan Tech University, Michigan’s Cranbrook Institute of Science, Indiana State Museum, Miami University’s Limper Geology Museum, Maine Mineral and Gem Museum, Wayne State University Geology Museum, and Wittenberg University Geology Department.
GeoFair is the Cincinnati region’s largest non-profit gem, mineral, fossil & jewelry show.
The 61st annual GeoFair will delight visitors over a full weekend in May.
10:00 a.m. to 5:00 p.m. 11:00 a.m. to 5:00 p.m.