Rockhounding in Franklin County, Massachusetts

10 mapped rockhounding spots in Franklin County. Most commonly produces agate, chalcopyrite, garnet, hematite.

Franklin County rockhounding photos

Representative spot and material photos from this county, shown where verified public image records are available.

1 photo

The Deerfield River bends past a rocky bank and gravel bar, Franklin County, Massachusetts — Deerfield RiverFranklin County, Massachusetts

Minerals reported in Franklin County

Standout in Franklin County

Hand-picked spot in Franklin County, chosen for unusual mineralogy or documented public access. Each card opens the full coordinates and access notes.

Top pick
Deerfield River
Public
Franklin County
The lower Deerfield River is the best known site in Massachusetts for agate, jasper, and chalcedony, eroded from the Deerfield basalt and other Triassic-Jurassic volcanic rocks of the Connecticut Valley rift and concentrated in the river's gravel bars.
Jasper, Agate, Chalcedony

Spots in Franklin County

Spot	Minerals	Coordinates	Access
ConwaySouth Deerfield Road	Agate	42.5094, -72.6835	Public
Davis MineDavis Mine Road	Chalcopyrite Pyrite	42.6834, -72.8650	Public
DeerfieldAlbany Road	Agate	42.5459, -72.6044	Public
Deerfield RiverHoosac Road	Jasper Agate Chalcedony	42.5262, -72.6452	Public
LeverettNumber Six Road	Chalcopyrite	42.4595, -72.4589	Public
MontagueLong Plain Road	Chalcopyrite Hematite	42.5072, -72.5247	Public
NorthfieldMount Hermon Station Road	Fluorite Garnet Golden Beryl	42.6930, -72.4775	Public
Northfield MountainFour Mile Brook Road	Garnet	42.6261, -72.4372	Public
Warwick	Hematite	42.6596, -72.3788	Public
ZoarZoar Road	Talc	42.6442, -72.9272	Public

Neighboring counties in Massachusetts

Adjacent rockhounding counties, ranked by how close their centroids sit to Franklin County. A natural extension if Franklin County is already on your trip plan.

Across the state line from Franklin County

Rockhounding counties in neighboring states within driving range. Geology rarely respects state borders — these are often the closest mapped spots you can reach without going deeper into Massachusetts.

Franklin County FAQ

Where can I rockhound in Franklin County, Massachusetts?+

RockHoundR tracks 10 rockhounding spots in Franklin County. Each entry below has coordinates, mineral notes, and access type. Always confirm local rules before collecting.

What rocks and minerals are common in Franklin County?+

Spots in Franklin County most often produce Agate, Chalcopyrite, Garnet, Hematite, Chalcedony. Individual spots can vary widely.

Are these Franklin County rockhounding spots on public land?+

Most spots in this list are tagged public, but access can change with seasons, claims, and local closures. Always verify before driving out — links in the app open the right BLM, USFS, or county pages.

Plan a Franklin County rockhounding trip

Open RockHoundR to see these spots on the map alongside land overlays, weather, geology, and your saved finds.