Mohawk Valley: Herkimer Diamond Rockhounding in Montgomery County, New York

Updated August 2026

Mohawk Valley is a mapped rockhounding spot in Montgomery County, New York. Reported finds include herkimer diamond. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Paid / fee dig
County: Montgomery County
State: New York
Nearest road: Mohawk Valley Mineral Mining INC
Postcode: 12166
Coordinates: 42.88105, -74.46697

Land & collecting status

Pay-to-dig site

This is a fee-dig location. Hours, prices, and what you can keep vary by operator. Call ahead before driving out.

Public-land rules vary by agency, season, and field office. The RockHoundR app pulls live BLM, USFS, NPS, and tribal overlays so you can see exactly which agency manages the ground at this spot.

Sources & verification

Spot details combine the public RockHoundR location dataset, normalized mineral labels, agency land-status checks in the app, and community submissions. Coordinates are approximate until verified in the field.

Sources: RockHoundR public spot dataset, app land overlays, and local agency review before each trip.

Found at Mohawk Valley

Each chip opens all spots that produce that material; the encyclopedia link opens the full ID and field guide.

Herkimer Diamond Encyclopedia →

Nearby rockhounding spots

Other rockhounding spots within driving distance of Mohawk Valley.

Across the state line from Mohawk Valley

Mohawk Valley is close enough to the New York border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.

Mohawk Valley FAQ

Where is Mohawk Valley?+

Mohawk Valley is in Montgomery County, New York, at 42.88105, -74.46697. Nearest road: Mohawk Valley Mineral Mining INC.

What rocks and minerals can you find at Mohawk Valley?+

Mohawk Valley is reported to produce Herkimer Diamond.

Is collecting allowed at Mohawk Valley?+

Pay-to-dig site. This is a fee-dig location. Hours, prices, and what you can keep vary by operator. Call ahead before driving out. Always confirm current rules with the managing agency before a trip.

What tools should I bring to Mohawk Valley?+

A rock hammer, sturdy gloves, safety glasses, and a collecting bag cover the basics here. Add a spray bottle: wet rock shows color and pattern that dry rock hides.

How do I get to Mohawk Valley?+

Open the directions link to navigate to 42.88105, -74.46697 in Google Maps. The nearest road is Mohawk Valley Mineral Mining INC.

More rockhounding in New York

See all 92 New York spots →

Open Mohawk Valley on the map

Use the RockHoundR app for live land overlays, weather, geology, directions, and saved finds.