Want to be a Demonstrator
or exhibitor at the show?

Demonstrators and exhibitors must have a current membership in one or more of the CGMA clubs. Our clubs benefit by members’ participation in the show. Contact your club’s representative about demonstrating and/or exhibiting in the show.

CGMA Clubs include:
• Chicago Rocks and Minerals Society (CRMS)
• Des Plaines Valley Geological Society (DPVGS)
• Earth Science Club of Northern Illinois (ESCONI)
• Elgin Rock Club (ERC)
• South Suburban Earth Science Club (SSESC)
• West Suburban Lapidary Club (WSLC)

Questions, comments, concerns?
Email us at: showmanager@cgmashow.com