Rockhounding in Herkimer County, New York
8 mapped rockhounding spots in Herkimer County. Most commonly produces herkimer diamonds, quartz, calcite, epidote.
Map showing 8 rockhounding spots in Herkimer County, New York
Spots in Herkimer County
| Spot | Minerals | Coordinates | Access |
|---|---|---|---|
| Ace of Diamonds & Herkimer Diamonds Mine | 43.1315, -74.9741 | Public | |
| Ace of Diamonds MineNew York State Thruway | 43.0110, -74.9720 | Paid / fee | |
| Diamond Mountain MiningNY 5S | 43.0150, -74.8740 | Paid / fee | |
| General Area (Herkimer County 1)State Highway 28 | 43.1532, -74.9781 | Public | |
| General Area (Herkimer County 2)State Highway 29 | 43.1377, -74.9484 | Public | |
| General Area (Herkimer County 3) | 43.1112, -74.9947 | Public | |
| Herkimer Diamond Mines | 43.1292, -74.9763 | Paid / fee | |
| Treasure Mountain MineKing Street | 43.0240, -74.9800 | Paid / fee |
Other rockhounding counties in New York
- Essex County10 spotsTop: Labradorite, Graphite, Scapolite
- Saint Lawrence County6 spotsTop: Barite, Fluorite, Anthophyllite
- Clinton County5 spotsTop: Magnetite, Quartz, Aegirine
- Orange County5 spotsTop: Bloodstone, Arsenopyrite, Blue Corundum
- Jefferson County3 spotsTop: Barite, Fluorite, Hematite
- Montgomery County3 spotsTop: Herkimer Diamonds, Quartz
Herkimer County FAQ
Where can I rockhound in Herkimer County, New York?+
RockHoundR tracks 8 rockhounding spots in Herkimer County. Each entry below has coordinates, mineral notes, and access type. Always confirm local rules before collecting.
What rocks and minerals are common in Herkimer County?+
Spots in Herkimer County most often produce Herkimer Diamonds, Quartz, Calcite, Epidote, Fluorite. Individual spots can vary widely.
Are these Herkimer County rockhounding spots on public land?+
Most spots in this list are tagged public, but access can change with seasons, claims, and local closures. Always verify before driving out — links in the app open the right BLM, USFS, or county pages.
Plan a Herkimer County rockhounding trip
Open RockHoundR to see these spots on the map alongside land overlays, weather, geology, and your saved finds.
