Bridgewater: Calamine & Galena Rockhounding in Northwest Hills Planning Region, Connecticut

Updated June 2026

Bridgewater is a mapped rockhounding spot in Northwest Hills Planning Region, Connecticut. Reported finds include calamine, galena, cerussite, pyromorphite, sphalerite. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Northwest Hills Planning Region
State: Connecticut
Nearest road: Quarry Drive
Postcode: 06752
Coordinates: 41.56297, -73.34102

Geology at Bridgewater

This spot sits on Ordovician? granitic gneiss, mapped as gneiss that formed roughly 420 to 390 million years ago. Metamorphic terrain like this commonly hosts vein and replacement mineralization, and old workings typically mark the productive zones.

Mapped unit: Ordovician? granitic gneiss
Age: 420–390 Ma (Early Devonian to Middle Devonian)
Rock types: gneiss
Elevation: 710 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 Bridgewater

Best months: March to November. Typical highs run 84°F in midsummer and 34°F in midwinter, with winter lows near 19°F.

Climate normals: NOAA 1991-2020 monthlies, DANBURY station (12 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 Bridgewater

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 Bridgewater.

Across the state line from Bridgewater

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

Bridgewater FAQ

Where is Bridgewater?+

Bridgewater is in Northwest Hills Planning Region, Connecticut, at 41.56297, -73.34102. Nearest road: Quarry Drive.

What rocks and minerals can you find at Bridgewater?+

Bridgewater is reported to produce Calamine, Galena, Cerussite, Pyromorphite, Sphalerite.

Is collecting allowed at Bridgewater?+

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 Bridgewater?+

A rock hammer, gloves, and safety glasses cover old mining-district ground. Stay out of shafts and adits; the best specimens typically come from dump piles.

When is the best time to visit Bridgewater?+

The most comfortable months at Bridgewater are March to November.

How do I get to Bridgewater?+

Open the directions link to navigate to 41.56297, -73.34102 in Google Maps. The nearest road is Quarry Drive.

More rockhounding in Connecticut

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Open Bridgewater on the map

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