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ROCKHOUNDING

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CONNECTICUT LOCAL FIELD REGION

Portland Brownstone District Rockhounding Guide

Historic arkose/brownstone quarry geology with research and heritage context.

Open this region on the main mapBack to Middletown

LOCAL INTERACTIVE MAP

Portland Brownstone District local map

Explore nearby Connecticut records without leaving this hub. Status, coordinate precision and access evidence determine whether a pin is a realistic field destination.

100records within 25 mi
Map
Land intelligence
Precision
This hub map shows nearby records only.Land and claim layers are planning aids, not collecting permission.
Historic quarry/mining context. General comparison image, not a photograph of this specific field region.
Historic quarry/mining context

Reference photograph used for rock and mineral identification. It is not from this exact location or a guarantee that collecting is permitted.

Mapped leads in Portland Brownstone District

The records below may represent collecting sites, managed programs, protected resources or research-only geology. Their individual status is more important than proximity.

USA Rockhounding

A 50-state field atlas for finding places, understanding current status, and navigating carefully.

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Field principle

A map marker helps you investigate a place. It does not replace current land ownership, posted rules, permits, claims, closures, or local restrictions.

Metal detecting

USA Rockhounding · 50-state field discovery

Search broadly · verify carefully · respect the land

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