Herkimer Mountain

Herkimer Mountain Contact information, map and directions, contact form, opening hours, services, ratings, photos, videos and announcements from Herkimer Mountain, Mining Company, Fonda, NY.
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Experience a new world class crystal mining adventure on a beautiful secluded 20 acre property in Fonda, NY where we guide you and support you through your day of digging for a variety of Herkimer Diamonds!

09/06/2026

FUN IS AWAITING!!
All you have to do is reserve your day. For a crystal hunting experience like no other you gotta be at Herkimer Mountain !
Next digs are Sept 12 & 13. Hurry they book up fast!




09/04/2026

Now offering private digs!!
You and your group can reserve the mine ALL TO YOURSELVES! CONTACT DIRECTLY for more info and to reserve.
And hurry as the fall weekend digs are booking up fast. Book your day at herkimermountain.com.
We look forward to seeing you have the time of your life!





09/04/2026

Be a part of a special memorable day at Herkimer Mountain. SAT September 26.
A Full Moon Herkimer Diamond Experience. The day starts at 8 with yoga and meditation, a full day of digging, ending the evening with reflection, meditation and release and renewal fire ceremony. Share a day of friendship and renewal.
Call or email to reserve your day. [email protected] or 518-571-9291
Don't miss this Special Event!


09/02/2026

Here is part 2- the exciting extraction of an amazing skeletal Herkimer Diamond...let's see it all cleaned up! She is a beauty!!!
This could be you! We are booking every weekend after labor day to the end of the season. Don't miss out!
Herkimer Mountain





09/01/2026

WATCH FOR FULL VIDEO to witness an extraction of a jaw dropping skeletal Herkimer Diamond at Herkimer Mountain.
Follow and keep watching...and book your fall visit now!
Herkimer Mountain





08/31/2026

We had an amazing weekend once again at Herkimer Mountain. Super people and surprising crystals. Here is just a small peak at some of them....Come dig your owna! Booking up fast for Sept 12 & 13. Also booking now for the fall. Opened every weekend!
Herkimermountain.com





08/30/2026

The new Store and greeting center is almost done! Exciting new things are happening. Keep watching to see it grow!
We are booking now for the fall. Our next opening is September 12 & 13. Hurry it's booking fast. After that, we were open every weekend until the end of the season.
Herkimer Mountain





08/29/2026

WE HAD ANOTHER FANTASTIC DAY at Herkimer Mountain.
Sold out crowd of great people finding great crystals! Thank you everyone!
Next up Sept 12 & 13. It's booking fast! Then every weekend after that!
Herkimer Mountain .





08/29/2026

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Fonda, NY

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