Perry: Analcime & Calcite Rockhounding in Washington County, Maine

Updated June 2026

Perry is a mapped rockhounding spot in Washington County, Maine. Reported finds include analcime, calcite, datolite, malachite, prehnite, and more. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Washington County
State: Maine
Nearest road: Kingsbury Road
Postcode: 04667
Coordinates: 45.01653, -67.07741

Geology at Perry

This spot sits on Perry Formation, basalt member, mapped as basalt that formed roughly 420 to 360 million years ago. Volcanic ground like this is where agate, jasper, and other chalcedony typically form, filling old gas pockets and fracture seams in the flow rock.

Mapped unit: Perry Formation, basalt member
Age: 420–360 Ma (Devonian)
Rock types: basalt
Elevation: 20 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 Perry

Best months: April to November. Typical highs run 77°F in midsummer and 29°F in midwinter, with winter lows near 11°F.

Climate normals: NOAA 1991-2020 monthlies, ROBBINSTON station (5 mi away).

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.

State guidance last verified: April 1, 2026

Maine Geological Survey
Maine Mineral & Gem Museum
Acadia National Park rules
Community submissions reviewed against published agency rules

Found at Perry

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 Perry.

Perry FAQ

Where is Perry?+

Perry is in Washington County, Maine, at 45.01653, -67.07741. Nearest road: Kingsbury Road.

What rocks and minerals can you find at Perry?+

Perry is reported to produce Analcime, Calcite, Datolite, Malachite, Prehnite, Agate, Amethyst, Bloodstone, Chalcedony, Quartz, Stilbite.

Is collecting allowed at Perry?+

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 Perry?+

Most agate and jasper is surface float: bring a spray bottle, a pick or small shovel, and a sturdy bag. Wet stones show their banding and translucence.

When is the best time to visit Perry?+

The most comfortable months at Perry are April to November.

How do I get to Perry?+

Open the directions link to navigate to 45.01653, -67.07741 in Google Maps. The nearest road is Kingsbury Road.

More rockhounding in Maine

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Open Perry on the map

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