Derry — Rockhounding in Westmoreland County, Pennsylvania

Derry is a mapped rockhounding spot in Westmoreland County, Pennsylvania. Reported finds include quartz, chalcedony, jasper. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Westmoreland County
State: Pennsylvania
Nearest road: Mill Street
Postcode: 15627
Coordinates: 40.34880, -79.26809

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 Derry

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 Derry.

Across the state line from Derry

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

Derry FAQ

Where is Derry?+

Derry is in Westmoreland County, Pennsylvania, at 40.34880, -79.26809. Nearest road: Mill Street.

What rocks and minerals can you find at Derry?+

Derry is reported to produce Quartz, Chalcedony, Jasper.

Is collecting allowed at Derry?+

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.

How do I get to Derry?+

Open the directions link to navigate to 40.34880, -79.26809 in Google Maps. The nearest road is Mill Street.

More rockhounding in Pennsylvania

See all 86 Pennsylvania spots →

Open Derry on the map

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