Campground and Herkimer Diamond Mining!
The office is open daily from 9 am to 7 pm during the season (mid-April to mid-Oct). The mines are open daily 9 am to 7 pm (or dusk, whichever comes first). The "diamonds" are Herkimer Diamonds, a special type of quartz crystal found only in this part of upstate New York. We have sites for tents or RVs, and also camping cabins. Check our website for details.
Reviews, get directions and information Crystal Grove Diamond Mine & Campground.