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Rock River Valley Geological Society Gem and Mineral Show
October 4
|Recurring Event (See all)
An event every day that begins at 12:00 am, repeating until October 5, 2025
51st annual gem and mineral show. The show is Saturday October 4th from 10am to 5pm and Sunday from 10am to 4pm. There will be demonstrations and speaker. Free will donation, free parking, door prizes each day for adults and children. Hands on activities for all ages. We will have club sales, grab bags, displays and rock samples. The event is held at the Jefferson County Fairgrounds at 503 N. Jackson Avenue, Jefferson, WI. We are a nonprofit rock club
