Herkimer Diamond Mines
Rockhounding site in Herkimer, New York · Quartz & Crystals
Herkimer Diamond Mines is a quartz rockhounding site near Herkimer, NY. Fee required. Best season: April through October on mine schedules.
Typical season: April through October on mine schedules
Key facts
Structured details for trip planning — verify access and fees with the land manager before you visit.
- Specimen type
- Quartz
- Primary specimens
- Herkimer Diamond, Dolomite, Pyrite
- Fee status
- Fee required
- Nearest town
- Herkimer
- State
- New York
- Coordinates
- 43.01700, -74.96700
- Best season
- April through October on mine schedules
- Access difficulty
- Moderate hammer work on dolomite
- Camping
- Herkimer KOA and area motels
- Activities
- Quartz crystal mining, dolomite splitting
- Facilities
- Multiple commercial mines with tools and restrooms
- Last updated
- July 5, 2026
What to pack for Herkimer Diamond Mines
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The experience
- Best time to visitApril through October on mine schedules
- AccessModerate hammer work on dolomite
- FacilitiesMultiple commercial mines with tools and restrooms
- Camping nearbyHerkimer KOA and area motels
Regional guide
This spot is featured in our Herkimer diamond country roundup with related rockhounding sites in New York.
Map & location
Sources & updates
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