Quarry (Talc): Serpentine & Talc Rockhounding in Lewis County, New York

Updated June 2026

Quarry (Talc) is a mapped rockhounding spot in Lewis County, New York. Reported finds include serpentine, talc. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Lewis County
State: New York
Nearest road: State Route 3
Postcode: 13648
Coordinates: 44.12167, -75.38171

Geology at Quarry (Talc)

This spot sits on Mangerite, pyroxene-(hornblende) syenite gneiss, mapped as gneiss and monzonite that formed roughly 1600 to 1000 million years ago. Plutonic rock like this weathers slowly into grus and boulders, and the most productive collecting is typically in weathered zones and drainages.

Mapped unit: Mangerite, pyroxene-(hornblende) syenite gneiss
Age: 1600–1000 Ma (Mesoproterozoic)
Rock types: gneiss and monzonite
Elevation: 820 ft

Geologic mapping via Macrostrat and the underlying state geological survey maps (CC BY 4.0). Bedrock at the surface can vary within a mapped unit.

Best time to visit Quarry (Talc)

Best months: April to October. Typical highs run 78°F in midsummer and 25°F in midwinter, with winter lows near 4°F.

Climate normals: NOAA 1991-2020 monthlies, GOUVERNEUR 3 NW station (17 mi away), adjusted for elevation.

Land & collecting status

Generally open to casual rockhounding

Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig.

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 Quarry (Talc)

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

Nearby rockhounding spots

Other rockhounding spots within driving distance of Quarry (Talc).

Quarry (Talc) FAQ

Where is Quarry (Talc)?+

Quarry (Talc) is in Lewis County, New York, at 44.12167, -75.38171. Nearest road: State Route 3.

What rocks and minerals can you find at Quarry (Talc)?+

Quarry (Talc) is reported to produce Serpentine, Talc.

Is collecting allowed at Quarry (Talc)?+

Generally open to casual rockhounding. Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig. Always confirm current rules with the managing agency before a trip.

What tools should I bring to Quarry (Talc)?+

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.

When is the best time to visit Quarry (Talc)?+

The most comfortable months at Quarry (Talc) are April to October.

How do I get to Quarry (Talc)?+

Open the directions link to navigate to 44.12167, -75.38171 in Google Maps. The nearest road is State Route 3.

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Open Quarry (Talc) on the map

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