Free!  Free!  Free!

The Club’s annual Mariposa Rockin’ Tailgate Rock Swap is held in the fall at the Mariposa County Fairgrounds parking lot. Our 2025 event will be October 11, 2025.

This is a community event that allows anyone and everyone to bring their rock, mineral, jewelry, or lapidary related items to sell or trade. There is a $10 charge for vendors..  There is no admission fee for the public.

• Vendors cannot start setup prior to 5 pm on Friday.  Saturday is preferred.
• Rocks, gems, minerals, rough, fossils, lapidary supplies, beads, jewelry, tools, equipment, etc! 
• This is an informal tailgate/swap meet – bring your own tables/chairs/shade etc.  Come & go as you please!

Questions? Mariposa Gem & Mineral Club:  mgmc@sti.net or call 209-742-4234.