About

Springtime in Mariposa is an ideal time to hold the annual Gem and Mineral show. The hills are green, wildflowers are in bloom, and the weather is usually mild.  The 2027 dates are April 10 and 11 at the Mariposa County Fairgrounds. The “Mountains of Minerals” show serves as a focal point to share mineral specimens from world-wide locations. Dealers from far and wide gather to share their knowledge and stock of minerals  and demonstrations of lapidary techniques are show highlights.