
Treasure Mountain Mine
Treasure Mountain Mine is a documented mineral occurrence near NY. Reported specimens include Quartz, Fluorite, Calcite, Galena. Verify land access and collecting rules before visiting.
View details24 rockhounding collecting sites within about 60 miles of Herkimer, New York.
This page lists 24 natural rockhounding sites near Herkimer, New York, sorted by distance within about 60 miles.
Near Herkimer, New York, our directory maps 24 natural rockhounding sites within about 60 miles of the city center — including 4 quartz & crystalss, 7 gemstoness, 12 fossilss, and 1 gold & minerals. The closest mapped spot is Treasure Mountain Mine (0.3 mi straight-line). Distances are not drive time; open each listing for directions, fee notes, access rules, and safety context before you travel.
| Central place | Herkimer, New York |
|---|---|
| Search radius | About 60 miles |
| Mapped spots | 24 |
| Closest listing | Treasure Mountain Mine (0.3 mi) |
| Specimen types | Quartz & Crystals (4), Gemstones (7), Fossils (12), Gold & Minerals (1) |
| Typical fees | 2 fee · 22 varies |
24 rockhounding collecting sites in New York, sorted by distance from the city center. For live GPS sorting, use rockhounding sites near me.

Treasure Mountain Mine is a documented mineral occurrence near NY. Reported specimens include Quartz, Fluorite, Calcite, Galena. Verify land access and collecting rules before visiting.

A popular Herkimer County fee mine where visitors break dolomite matrix to extract brilliant quartz crystal clusters.

World-famous doubly terminated quartz crystals called Herkimer diamonds occur in dolomite vugs of the Mohawk Valley near Herkimer.

Diamond Mountain Mining is a documented mineral occurrence near NY. Reported specimens include Garnet, Epidote, Quartz. Verify land access and collecting rules before visiting.

General Area (Herkimer County 3) is a documented mineral occurrence near NY. Reported specimens include Herkimer Diamonds. Verify land access and collecting rules before visiting.

Fossil collection site in the Fiddlers Green, New York. Environment: lagoonal/restricted shallow subtidal. Source: Paleobiology Database (PBDB), CC BY 4.0.

Ace of Diamonds & Herkimer Diamonds Mine is a documented mineral occurrence near NY. Reported specimens include Herkimer Diamonds. Verify land access and collecting rules before visiting.

Fossil collection site in the Manlius, Herkimer County, New York. Environment: carbonate indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.

General Area (Herkimer County 2) is a documented mineral occurrence near NY. Reported specimens include Herkimer Diamonds. Verify land access and collecting rules before visiting.

General Area (Herkimer County 1) is a documented mineral occurrence near NY. Reported specimens include Herkimer Diamonds. Verify land access and collecting rules before visiting.

Fossil collection site in the Skaneateles, Otsego County, New York. Environment: shoreface. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fossil collection site in the Herkimer, Utica County County, New York. Environment: transition zone/lower shoreface. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fossil collection site in the Skaneateles, Otsego County, New York. Environment: shoreface. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fossil collection site in the Skaneateles, Otsego County, New York. Environment: shoreface. Source: Paleobiology Database (PBDB), CC BY 4.0.

Crystal Grove Diamond Mine is a documented mineral occurrence near NY. Reported specimens include Herkimer Diamonds (Quartz Crystals). Verify land access and collecting rules before visiting.

Fossil collection site in the Skaneateles, Oneida County, New York. Environment: shoreface. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fossil collection site in the Skaneateles, Madison County, New York. Environment: shoreface. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fossil collection site in the Millport equivalent, New York. Environment: prodelta. Source: Paleobiology Database (PBDB), CC BY 4.0.

Toddsville is a documented mineral occurrence near NY. Reported specimens include Sapphire. Verify land access and collecting rules before visiting.

Fossil collection site in the Skaneateles, Madison County, New York. Environment: shoreface. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fossil collection site in the Skaneateles, Madison County, New York. Environment: shoreface. Source: Paleobiology Database (PBDB), CC BY 4.0.

Diamond Acres Mine is a documented mineral occurrence near NY. Reported specimens include Mixed minerals. Verify land access and collecting rules before visiting.

Fossil collection site in the Moscow, New York. Environment: offshore. Source: Paleobiology Database (PBDB), CC BY 4.0.

Sprakers is a documented mineral occurrence near NY. Reported specimens include Herkimer Diamonds, Quartz crystals. Verify land access and collecting rules before visiting.
Pins within about 60 miles — open a listing for fees, access, and directions.
24 sites mapped near Herkimer
Browse by specimen type in New York — each link opens the full state directory for that category.

Quartz veins, crystal pockets, and pegmatite sites — from Herkimer diamonds to Arkansas clear quartz.

Facetable and collector gems — emeralds, sapphires, garnets, topaz, beryl, and tourmaline localities.

Trilobites, brachiopods, petrified wood, and other paleontological collecting on public land.

Placer gold, pyrite, copper minerals, and general ore-mineral localities open to casual collecting.
Herkimer is a practical launch point for day trips to natural rockhounding sites in New York. Within about 60 miles you will find 24 mapped destinations in our directory, starting with Treasure Mountain Mine about 0.3 mi from the city center.
The mix spans quartz & crystals, gemstones, fossils, gold & minerals — related terms searchers use include creek gravel collecting, desert washes, road cuts, and field collecting.
Every card on this page is a verified directory entry in New York with map coordinates. We measure straight-line distance from the Herkimer city center — not driving time. A creek rockhounding site 12 miles away on forest roads can take longer than a river access point 20 miles away on a highway.
Field collecting near Herkimer includes informal gravel bars, dry washes, quarry faces, and developed park collecting areas. Rules, fees, and seasonal access differ by land manager. Never assume collecting is allowed without checking the listing and posted signs the day you visit.
Field conditions near Herkimer change after rain, snowmelt, and summer heat. Unstable slopes, heat exhaustion, loose rock, and flash floods are real risks at creek and quarry rockhounding sites — most sites have no supervision. Check weather and local advisories before you start digging.
We publish original planning copy, safety tips, and last-updated dates on each listing. See our editorial policy for sourcing standards, or contact us if access or conditions have changed.
How we research listings · Report a correction · Safety disclaimer
Near Herkimer, New York, our directory lists 24 natural rockhounding sites within about 60 miles — mainly 4 quartz & crystalss, 7 gemstoness, 12 fossilss, and 1 gold & minerals. Each listing links to directions, fee notes, and safety context. Use near me on your phone for live distance sorting from your location.
This page shows 24 mapped rockhounding collecting sites within about 60 miles of Herkimer. The full New York directory may list additional holes farther out or awaiting coordinates. Counts update as we verify new listings.
The closest mapped spot to Herkimer is Treasure Mountain Mine (0.3 mi straight-line). Open that listing for driving directions, access notes, and current fee information — unofficial holes can change without notice.
2 require a fee or park admission; 22 have variable or unverified fees. Open each spot page for current fee details.
Near Herkimer, documented specimen types include quartz & crystalss, gemstoness, fossilss, gold & minerals. A rockhounding site is a natural outcrop, wash, or creek gravel bar — not a fee dig or shop. Filter by type on the New York state page or open each card for specimen and access details.
Late spring through early fall is the usual field season near Herkimer, but snowmelt, drought, and weekend crowds change conditions week to week. Check each listing before you drive — storms can make washes and creek banks unsafe.
Field collecting near Herkimer carries real risks: unstable slopes, heat, loose rock, and no rangers at most unofficial sites. Check weather and posted warnings the day you visit. Read our rockhounding safety basics guide and each listing's safety section before you dig.
Listing data last updated across spots on this page.