Herkimer Diamonds ⋆ Crystal Grove Diamond Mine and Campground

Open Daily Through October 12, 2026 | Mine Hours 9 AM-Sunset Store Hours 9-5 Sun-Thurs 9-6 Fri-Sat

Welcome to Crystal Grove Diamond Mine & Campground!

Escape to Crystal Grove Diamond Mine & Campground, where nature’s tranquility meets the thrill of the hunt. Nestled beneath a lush canopy of hardwoods, our spacious grounds offer the perfect stream-side retreat for birdwatchers, nature enthusiasts, and anyone looking to recharge in the heart of the Adirondack and Central Leatherstocking regions.

Whether you’re looking for a rustic escape or a comfortable stay, we offer a variety of accommodations to suit your style. But the real magic happens in our adjacent mines where you can dig for world class specimens of herkimer diamonds.We are known for spectacular crystals on matrix and shimmering druzy specimens.

We can’t wait to host you while you hunt your next great specimen and discover your sparkle. See you at the Grove!

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Check Out What We Have To Offer

Our Cabins

Cabins

The Grounds

Grounds

Our Mine

Mine

Upcoming Events

Events

Hear Why Our Visitors Love Us!

Sammy Hill

Great campground and mining was amazing. We took home some breath taking diamonds. Can't wait to return.

Courtney D

After having a lackluster experience at Ace of Diamonds a few years back, I was hesitant about herkimer mining again. This place was quite the pleasant surprise. Not only did I strike a pocket, but I received help from many friendly faces willing to assist me in getting my herikmers out from the heavy rock. The employees are wonderful, campground is clean, and the mine is full of great treasures.

John Baird

This was our first trip to Crystal Grove. It will not be our last. The staff was very friendly and more than helpful. We were there for just the day but will be campers on our next visit. We were able to find some beautiful pieces that will be very nice in our collection. Thank you to everyone for a fantastic day!

Jeremy Bledsoe

We camped and mined, had a great time! We brought our dog and everyone was very friendly, bathrooms were clean and grounds are well kept.

Rachel Nichols

This campground is amazing! They offer spacious campsites OR comfy cabins. Their customer service is excellent and they keep the bathrooms and showers clean. The store has lots of cool items for sale plus all of the camping necessities in case you forget something. Highly recommended for a weekend (or longer) getaway! Many fun events on the calendar throughout the season. Family friendly and pets are welcome!

Alexander Stanku

Visited with Scout Troop Oreland 1. It was the perfect outing for camping and for fulfilling a requirement toward the Geology Merit Badge. This is a great trip to take with kids, but it's also a trip to take with friends. Kudos to the staff, who are friendly, knowledgeable, and accessible. Shout out to Pat whose enthusiasm for geology and nature's wonders is sincere and contagious.

Renee Berbeneciuc

We really enjoyed camping and mining here. It's small quaint and everyone was extremely happy and friendly, both staff and fellow campers. We yielded so many crystals, the kids never got bored. The event they held had many vendors and was well planned. Great experience!

Reservations