Siouxland Gem and Mineral Society's 1st Annual Rock Swap

On Saturday, August 2nd, the Siouxland Gem and Mineral Society will be hosting their 1st annual rock swap at the Lewis and Clark Interpretive Center. The event will feature the selling and trading of rocks and minerals, rock painting, and lapidary demonstrations. This is a FREE event to vendors and the public. Tables are available. In case of rain the event will be moved inside of the center.

Vendors, please register to reserve a table by calling 712-253-5479. Bring your own table or trunk, if you are able to. The registration deadline is July 19, 2025.