The 12 Best Places In Upstate New York To Hunt For Gems, Beach Glass And Other Natural Treasures
Herkimer diamonds aren’t diamonds at all. They’re quartz crystals that form with two pointed ends, and they come out of the rock already looking cut and polished.
I love that nature did the jeweler’s job for free. These crystals formed nearly 500 million years ago. The Mohawk people were collecting them long before anyone opened a tourist mine.
The treasure list here doesn’t stop at quartz. Upstate New York also hides the state gemstone, garnet, inside old Adirondack mine rock.
Lake shores along the region trade in frosted glass that waves have tumbled smooth over the years. Creek beds hold trilobites that look like tiny armored bugs frozen in stone.
This is the perfect excuse to get muddy knees on purpose. What remains is to answer the question: which treasure would you chase first: a crystal, a garnet, or a piece of glass the lake polished just for you?
1. Herkimer Diamond Mines

Few places hand you a hammer and say keep whatever you find. Here, that’s basically the deal, and the rocks are full of sparkly surprises.
Herkimer Diamond Mines sits in the Mohawk Valley right along Route 28, at 4626 NY-28, Herkimer, NY 13350. The draw is a surface mine where you dig and crack rock in search of double-terminated quartz crystals.
Those crystals are the famous Herkimer diamonds. Small, clear ones can even turn up sitting right on the surface after you brush away the dust.
Not into swinging a hammer all day? Sluice mining lets you rinse a bag of dirt and pick out treasures, which is a big hit with kids.
The property also has a museum section where you can learn about the crystals. There’s a gift shop for anyone who wants a backup souvenir, just in case the rocks play hard to get.
Hunger has a way of sneaking up on miners, so the on-site restaurant is handy. A campground is part of the setup too, which makes a two-day dig very doable.
Timing matters if you like elbow room. Saturdays get the busiest, while weekdays tend to feel much quieter on the rock piles.
Bring sturdy shoes, gloves, and eye protection for cracking rocks. A small container with tissue helps keep your crystals from scratching each other on the ride home.
Free parking and restrooms round out the practical side. Your only real job is to keep your eyes peeled for that telltale glitter.
2. Diamond Mountain Mining, LTD.

Scepters, barbells, and black diamonds sound like a fantasy game inventory. At this Little Falls mine, they’re real crystal shapes collectors hope to find.
Diamond Mountain Mining calls itself a world-class Herkimer diamond collector’s mine. The property spreads across 187 acres of upstate New York countryside.
What sets it apart is the variety of odd crystal forms. Scepters look like a crystal wearing a crown on top of another crystal.
Barbells have chunky ends linked by a thinner middle. Skeletal crystals show hollow, stepped faces that look almost built by tiny architects.
Then there are the so-called black diamonds. They’re dark Herkimer quartz, and they stand out sharply next to the usual clear sparkle.
Here’s the important planning tip. Public digging happens through guided digs, and you need a reservation to join one.
A guide is a real bonus if you’re new to this hobby. First-timers can learn what to look for instead of guessing at every shiny chip.
The mine also sells crystals for retail. That’s handy if you want a special formation for a shelf or a gift without hours of digging.
Gender-neutral restrooms are on site. The place also welcomes LGBTQ+ visitors as a safe space.
Book ahead, pack gloves and water, and plan for a full day at 416 Ritter Rd, Little Falls, NY 13365. Crystal hunting tends to make time disappear faster than you’d think.
3. Herkimer Mountain Diamond Mine

Weekend warriors, this one’s built for you. The mine near Fonda offers scheduled public digs on fall weekends, with private weekday digs available by appointment.
Herkimer Mountain Diamond Mine bills itself as the destination for Herkimer diamond digging. That’s a bold claim in a region packed with crystal spots.
Hours run from 9 AM to 5 PM on weekend days. That gives you a solid eight hours to chip, sift, and search.
Plenty of folks dig here all day long. Once you spot your first clear point poking out of the rock, stopping gets tough.
Herkimer diamonds are quartz crystals with points on both ends. Nature shapes them with flat, shiny faces, so they look cut even straight out of the stone.
The mine sits on Oswegatchie Road in Fonda, in the Mohawk Valley. Set your GPS for Oswegatchie Rd, Fonda, NY 12068. It’s a good pick if the bigger Herkimer area spots feel crowded.
All visits require advance reservations, so check the available digging dates and book before making the trip. Your car ride would end with a locked gate and zero crystals.
Pack the basics before you go. A rock hammer, safety glasses, gloves, and a bucket will cover most of your needs.
Snacks and plenty of water help too. Digging under the sun burns more energy than you might expect.
One more tip: bring egg cartons or small boxes. They keep your best finds safe from bumps and scratches.
4. Hooper Garnet Mine in Siamese Ponds Wilderness

Garnet is the official New York State gemstone, chosen in 1969. At this old Adirondack mine, you can find it lying around in the dirt.
Hooper Garnet Mine sits inside the Siamese Ponds Wilderness near North Creek, NY 12853. It’s an abandoned mine site, and it’s open to the public.
Garnets show up embedded in rocks and scattered on the ground. Their deep red color makes them pop against gray stone once your eyes adjust.
Gear can stay simple here. Visitors can admire garnets embedded in the rocks, but digging and removing minerals from protected state land require appropriate permission.
There’s no gift shop or ticket booth waiting for you. This is a wilderness area, so treat it like a hike with a treasure bonus.
Wear solid boots and bring bug spray during warmer months. The Adirondacks are beautiful, and the bugs know it too.
The site is listed as open around the clock. Still, daylight is your friend for safe footing and spotting those red glints.
A free parking lot gives you a starting point. Midweek and Friday daytime can get busier, while Saturday daytime has tended to be calmer.
Bring a camera to photograph the garnets and leave the rocks undisturbed for future visitors. Pack out any trash so the area stays wild for the next rockhound.
Gore Mountain garnets from this region are known for their hardness. That makes them tough little keepsakes from the North Country.
5. Barcelona Harbor Beach

A lighthouse, a waterfall, and beach glass all in one stop? Barcelona Harbor Beach packs a lot of scenery into a small Lake Erie corner.
The beach sits at 8298 1st St, Westfield, NY 14787, near the far western tip of New York. It’s known for a calm, uncrowded feel, which is great news for slow beachcombers.
Sea glass turns up along the shore here. Lake waves tumble old glass until the edges go soft and the surface looks frosted.
Look for greens, browns, and whites first, since those are most common. Blues and other rare colors are the prizes worth bragging about.
After glassing, check out the waterfall by the lighthouse. It’s a nice reward for tired eyes that have stared at pebbles for an hour.
Picnic tables make lunch easy. Restaurants are nearby too, in case you forgot the sandwiches.
Pets are welcome on this beach. Your dog can sniff around while you scan the sand.
The beach opens at 6 AM, which is perfect for early birds. Morning hunts let you check what overnight waves washed in before others arrive.
Weekend afternoons get the busiest. Weeknights tend to stay quiet if you’d rather hunt in peace.
Bring a little mesh bag so sand falls out as you walk. Your car floor will thank you.
6. Public Beach

Waterfalls on a beach feel like a bonus level. This Westfield shoreline has them, plus beach glass waiting near the water.
Listed simply as Public Beach, the spot sits along Lake Erie in Westfield, NY 14787. The name is plain, but the views are not.
Panoramic lake views stretch out in front of you. Little waterfalls add sound and sparkle to the scene.
Calm waves and shallow water make it easy for younger hunters. Kids can splash and search without big surf knocking them around.
Beach glass shows up here, so slow down and scan carefully. Frosted pieces often hide among wet pebbles right at the edge of the waves.
There’s even a pirate ship mentioned among the fun features. That seems fitting for a place built around treasure hunting.
Public restrooms are available. Picnics are a highlight, so pack a lunch and make an afternoon of it.
The beach is listed as open 24 hours. Daylight is still best, since tiny glass pieces vanish fast in dim light.
Parking is easy here. That’s handy when you’re hauling buckets, towels, and snacks.
A good trick is to hunt right after a windy day. Stirred-up waves often roll fresh glass onto the shore.
7. Point Gratiot Park

Shale cliffs, Lake Erie sunsets, and glass on the sand make a pretty strong combo. Point Gratiot Park in Dunkirk delivers all three.
The park sits right on the lake with a wide natural beach, near NY-5 & Point Dr W, Dunkirk, NY 14048. Textured shale cliffs rise nearby and give you a great lookout.
Sea glass washes up along the shore. Some of it is thought to come from old shipwrecks, which adds a fun bit of mystery to each piece.
The rocks here are a treat too. Smooth, striped stones make great pocket souvenirs if glass is scarce that day.
Families have plenty to do between hunts. You’ll find a playground with slides and swings, plus a baseball field.
Picnic pavilions and grills make lunch simple. Benches and tables near the cliff are prime seats for sunset.
Lifeguards are on duty during summer. A walking trail with wide views is great for stretching your legs.
Dogs are allowed, so your four-legged helper can tag along. Free parking is available in a lot and on the street.
Hours run from 7 AM to 10 PM. Sunday afternoons get busier, so weekday mornings are smart for quiet glass hunting.
Stay off the cliff edges, since shale can crumble. Your best treasure is a safe trip home.
8. Wright Park Beach

Clear water makes glass hunting so much easier. At Wright Park Beach in Dunkirk, NY 14048, you can often spot pieces shining just under the surface.
This sandy Lake Erie beach is free to visit. Beach glass shows up here, sometimes in impressive amounts after the waves have been busy.
Watch the line where the water meets the sand. Glass likes to settle there with other small pebbles.
Grassy areas with shade trees give you a break from the sun. Picnic spots sit right on that grass, so lunch can stay close to the action.
Kids have a splash pad to play in. It’s a nice option when little ones lose interest in staring at pebbles.
A rinse station helps you wash off sand before getting back in the car. Clean bathrooms are on site too.
Hungry after hunting? A casual grill sits across the street for a quick meal.
Sunset views here are a big draw. Golden light also makes wet glass gleam, which can help you spot one last find.
Fun waves roll in on some days. That movement can bring fresh treasures, so check back after breezy weather.
Bring a small jar for your collection. Lining it up on a windowsill turns your haul into instant decor.
9. Evangola State Park

Tomato festival fans and glass hunters can share this park. Evangola State Park hosted tomato festivals in previous years and has a scenic Lake Erie shoreline that attracts beachcombers.
The park covers 733 acres along Lake Erie at 10191 Old Lake Shore Rd, Irving, NY 14081. That’s a lot of room for hiking, beachcombing, picnicking, and enjoying the Lake Erie scenery.
Beach glass shows up along the shore for patient treasure hunters. Rocky stretches of beach are worth checking, since glass loves to hide among pebbles.
Natural forest frames the beach. It gives the whole place a peaceful, outdoorsy feel.
When your eyes need a rest, there’s much more to do. Hiking, swimming, athletic fields, and a basketball court keep the energy up.
Campsites and cabins make overnight stays possible. That means you can hunt at dusk and again first thing in the morning.
Kids get a playground with slides and swings. Kid-friendly hikes are also part of the mix.
Picnic tables and grills are on hand for lunch. Dogs are allowed, so your pup can join the search party.
Big waves sometimes roll in on this beach. They can be fun to watch and may toss new glass onto shore.
Weekend afternoons tend to be busy. A weekday morning visit gives you a calmer shoreline to scan.
10. Eighteen Mile Creek-Lake

Trilobites in a creek where people also fish and kayak? That mix makes Eighteen Mile Creek in Derby one fun stop.
Trilobites were ancient sea creatures with segmented shells. Their fossils turn up in the gray shale that lines this part of western New York.
The creek flows toward Lake Erie between tall cliffs. Wading lets you view those cliffs and the lake from a pretty special angle.
Look closely at flat pieces of shale near the water. A trilobite might show up as a small, ridged oval in the rock.
The water is known for being clear and refreshing in summer. Water shoes make wading safer on slippery stones.
Besides fossil hunting, this spot is popular for kayaking and canoeing. Fly fishing is a big draw too.
Bring a camera, since the scenery is great for photos. Picnics are another easy way to round out the day.
Hours run from early morning into the evening. Weekend afternoons get busier, so mornings are calmer for careful searching. For public creek access, use the Joel Harvey Eighteen Mile Creek Fishing Access and Paddling Launch at 9049 Lake Shore Rd, Derby, NY 14047, and respect nearby private property.
Never climb or dig into the cliff walls. Loose shale can fall, and the creek bed has plenty to explore.
Pack a small brush and bag for your finds. Old newspaper also helps wrap fragile shale pieces.
11. Eighteenmile Creek Conservation Park

Lots of cool stuff to find is an honest description of this place. Eighteenmile Creek Conservation Park in Hamburg pairs a scenic gorge with plenty to explore.
Trails wind through a wooded gorge with several waterfalls. Some trails involve significant elevation changes, muddy sections, and uneven ground, so sturdy footwear is important.
Paths are well marked, which helps if you’re new to the area. You can focus on the scenery instead of your map.
Reaching the creek can be challenging because the park includes a steep gorge, so visitors should follow marked trails and use caution. Once you’re there, the water feels just right for summer splashing.
Shale lines the creek in this part of upstate New York. Those flat gray layers are worth flipping through with curious fingers.
Bring a small magnifying glass for close looks. Tiny details in rock are easier to spot up close.
Kids do well here thanks to the gentle trails. Dogs are allowed too, so the family pup can sniff along.
The park opens at 7 AM year-round, closing at 9 PM in summer and at dusk during the colder months. Weekend mornings are busier, while midweek tends to be much quieter. The trailhead waits at 2675 S Creek Rd, Hamburg, NY 14075.
Wear shoes that can get wet without drama. Creek rocks can be slick, so step slowly.
Leave the waterfalls as you found them. Taking photos is the best souvenir from those spots.
12. Lake Glass Beach

The name pretty much gives away the prize. Lake Glass Beach on Cayuga Lake is all about frosted glass tumbled by Finger Lakes waves.
Lake Glass Beach sits near Little Creek in the Village of Aurora, along the eastern shore of Cayuga Lake. Now it serves as a public spot for wading, cooling off, and beachcombing.
Freshwater glass is often called lake glass. It looks like sea glass, but lake waves did the polishing instead of the ocean.
The water here isn’t deep, so you can walk right out. That makes it easy to scan the bottom for pale, glowing pieces.
Bring water shoes for the pebbly shoreline. A small net or strainer can help scoop up shiny bits.
Dogs can come along for a dip. Your pup gets a swim while you hunt.
Entry is free, which makes it an easy weekend pick. Friday and Saturday afternoons get the busiest.
Aurora sits on the east side of Cayuga Lake. You’ll find the beach near Little Creek, Aurora, NY 13026, a peaceful stop if you’re road tripping through the Finger Lakes.
Take only glass and leave living things alone. Snails and plants help keep the lake healthy.
Treat this little beach kindly so it stays open and clean. Every rinsed jar of glass you bring home is a reminder of a sunny upstate afternoon.
