Prospect for your very own Herkimer Diamonds!

At our above ground surface mines, you can search for the Herkimer Diamond Quartz Crystals that may be hiding right in front of you! Collection methods vary, but most folks like to break open rocks in search of the beautiful crystals that were formed over 500 million years ago! You can keep everything you find! After you find your diamonds, visit our "Build and Wear, Build to Share" activity center and create a lasting piece of jewelry to remember your visit!

Herkimer Diamonds are beautiful double-terminated quartz crystals found in Herkimer, New York. Incredibly, these phenomenal gemstones are close to five hundred million years old. The crystals are magnificent works of nature, found in the rock, having a diamond-like geometrical shape. Thus, the name recognition of “Herkimer Diamonds”.
Herkimer Quartz Crystals rival true diamonds. A true diamond found in the rough is exactly that, a rough appearing glass-like stone. The true diamond must be painstakingly cut by man to give it smooth faces and a geometrical shape. On a hardness scale, a true diamond scores a ten. Herkimer Diamond Quartz Crystal falls at a 7.5 on the Moh's scale, giving the real diamond a close race. They are naturally faceted, each having eighteen facets and 2 points. 

Visit us and you can mine for your own Herkimer Diamonds!

Schedule & Hours

Herkimer Diamond Mines  -

Open April 15th - November 1st

Hours of Operation for the Miners' Village: 

 - Village Hall (Registration) & Prospecting Area (Mining): 
   Open 9:00 am - 5:00 pm daily

 - Build to Wear, Build to Share (Artisan Center):
  Open 9:30 am - 4:30 pm daily

 - Trading Post (Retail Store):

    Open 9:00 am - 5:00 pm daily

No hammers over 12 lbs.

Due to Covid restrictions, tents, umbrellas, canopies, or other types of structures are not allowed in the mining area.

For those of you who are mining with us for more than 1 week at a time, we will require you to rotate to a different area every week 

Admission & Rates

Prospecting in the Mines  

$14.00 per person for ages 13 and up
$12.00 per person for ages 5 to 12
-Free for children 4 and under

Your Admission Includes: 
An all day prospecting wristband ticket, use of a rock hammer, zip lock bags, and mining information. (Goggles are recommended and available for purchase.)

Sluice Mining

In addition to prospecting in the mines, we also offer sluice mining, which is popular with miners of all ages. Purchase a special bag and head to the Sluice to start screening. Each bag is filled with treasures waiting to be discovered.

Sluice Mining Rates
Fossil Bag - $13.00 each bag

Gemstone Bag - $13.00 each bag
Herkimer Diamond Dirt Bag - $13.00 each bag

Artisan Center - Build and Wear, Build to Share!

After you collect your Herkimer Diamonds, create beautiful custom jewelry that is just your style! At our "Build and Share" Herkimer Diamond Activity Center, you can choose from a variety of jewelry making accessories to make your masterpiece!

Diamond Activity Rates
prices vary based on options selected

Open 9:30 am - 4:30 pm daily