Thanks all for a great Night at the Museum

Well Mariposa Chamber mixers have seldom been like this. Thanks to Nikki and all the volunteers who made it so successful. And especially to those who donated items to the auctions and raffles. Thanks to Kim and Monica for great social media artwork and publicity.  We were all too busy to take many photos, by Monica managed to grab a few great ones.  See below.

Yes we are part of Cal State Parks and just outside Yosemite

Yes we are part of Cal State Parks and just outside Yosemite

Brett's Mineral Collection that ties in to his Mineral Wines

Brett’s Mineral Collection that ties in to his Mineral Wines

Donated by Ace Hardware for a raffle by itself.

Donated by Ace Hardware for a raffle by itself.

“Night at the Museum”


Please Join us

“Night at the Museum”
Wednesday – June 22, 2016 5:30 – 8:00
Complimentary Appetizers, Beer and Wine Cash Bar
Mine Tunnel Tours
Special Presentations and Demonstrations
Giant Crystals, Florescent Minerals, Meteorites and more
The Historic “Fricot Nugget” 13 lbs. of Crystalline Gold
Raffle and Silent Auction 

Night at the Museum INFOHosted in conjunction with Mariposa Chamber of Commerce


Everything you want to know about gold prospecting

California gold panning kitWanting to learn more about gold prospecting, panning, exploring or history? Sierra Sun Times is Mariposa’s online daily news source and they have a very comprehensive set of links to everything about gold and the Sierra gold rush.

Gold Rush demos at museum
See their Gold Page on Gold Rush Cam.

Bring the kids by on Saturdays to see panning demos in the museum gardens, and don’t forget all the extensive historic gold displays – even a mine tunnel – inside the museum.

Vendor sign up for 2016 show

Calling all would be vendors for our 2016 annual spring Gem Faire.   See Gem Show pages on this website for vendor letter and application forms. First come, first serve and we sold out this year. More marketing materials available shortly.

2015 Gem and Mineral Show a Big Success

Once again the annual Gem and Mineral Show was a huge success. As usual the vendors brought their best goods. In addition to all of the “retail therapy” attendees got to enjoy great food and music. The gold panning at the authentic gold camp and the wire wrapped jewelry activities were very popular with the kids. Even with perfect weather a large number of guests went inside to visit our amazing museum which is a somewhat hidden “Gem” located here in Mariposa which houses the Official California State Collection of Rocks and Minerals. There are also a lot of great educational displays about Mining in California and the Gold Rush. It is always fun to see both the kids and adults enjoying the learning experience and appreciating the fantastic resources that we have here in Mariposa County. 




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Can’t wait until next year.

Invites to Gem & Mineral Show

Genuine Local Prospectors

Genuine Local Prospectors Mariposa

Our annual Gem & Mineral Show is coming up fast – and April 11, 12 weekend we are the only gem show in the state. So plan now to spend at least a day in Mariposa and have fun seeing the stone cutting, gold panning, jewelry making, etc.  Once again we will have volunteer musicians under the portico between the halls and the museum itself providing fun background music while you share in the delicacies from our lovely food vendors and roam the outdoor vendor booths.

Please send a message to Contacts on this site if you wish to volunteer, help or in any way can assist in getting the word out to all sorts of Central California media. If you think our museum has a lot of minerals and gems, wait until you see the full show collection.

See NEWS section here for full press release and backgrounder.

All proceeds go to helping the museum, museum association and the local gem club.

PS Vendors:  Only a few booth spaces left inside. Submit your applications now to guarantee a spot.

PPS:  Are you a member of the Museum Association?  Your small donation gives you an inside track on what is going on, as well as a tax free deduction as you help the museum grow its great collection and provide interpretive services for state residents and visitors alike. Don’t let family members throw out Grandpa’s rock collection when he passes on – have them donate it too.

Vendors – Sign up for 2015 Gem Show

Calling all vendors. Last year we completely sold out, and some have already requested more space for next spring’s show.  Forms are on Gem Show page of this website. Sign up today. Confirmed dates are April 11th and 12th (Sat and Sun), the weekend before Easter.

Gem and mineral show mariposa yosemiteAlso you can download a full size version of this flyer from the Show page and help spread the world. Needless to say we are looking for a lot of volunteer helpers too.