Tilly Foster Iron Mine — Rockhounding in Putnam County, New York

Tilly Foster Iron Mine is a mapped rockhounding spot in Putnam County, New York. Reported finds include magnetite, brucite, chondrodite, clinochlore, titanite. Below: coordinates, access notes, nearby spots, and trip-planning links.

Map showing Tilly Foster Iron Mine in Putnam County, New York

Quick details

Access
Public area
Nearest road
Old Mine Road
Postcode
10509

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 Tilly Foster Iron Mine

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 Tilly Foster Iron Mine.

Across the state line from Tilly Foster Iron Mine

Tilly Foster Iron Mine is close enough to the New York border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.

Tilly Foster Iron Mine FAQ

Where is Tilly Foster Iron Mine?+
Tilly Foster Iron Mine is in Putnam County, New York, at 41.41298, -73.64211. Nearest road: Old Mine Road.
What rocks and minerals can you find at Tilly Foster Iron Mine?+
Tilly Foster Iron Mine is reported to produce Magnetite, Brucite, Chondrodite, Clinochlore, Titanite.
Is collecting allowed at Tilly Foster Iron Mine?+
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 Tilly Foster Iron Mine?+
Open the directions link to navigate to 41.41298, -73.64211 in Google Maps. The nearest road is Old Mine Road.

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