Where to Find Fossils in Maine: 5 Mapped Sites
Maine has 5 documented sites where fossils have been reported, and the best-known are Castine, Drainage ditch on the south side of Dudley Road, 70 m west of end of Turner Rd., and locality 1099L, Tweedy Road, on Presque Isle stream, Presque Township. Every site is mapped below with GPS coordinates and links to a full report of access and what's been found there.
Last updated: — data compiled by the Rockhounding.org Research Team · methodology
Fossils Map: Maine
All 5 fossils sites in Maine. Click a pin for the full site report.
Where Fossils Are Found in Maine
Fossils live in sedimentary rock — limestone, shale, and sandstone. Fresh exposures are everything: roadcuts, creek banks after storms, quarry spoil, and eroding badlands beat weathered outcrop every time.
The richest reported sites in Maine: Castine, Drainage ditch on the south side of Dudley Road, 70 m west of end of Turner Rd., locality 1099L, Tweedy Road, on Presque Isle stream, Presque Township, Perry, ME, Sorrento.
All Fossils Sites in Maine
How to Identify Fossils
Look for biological structure the rock around it lacks: shell curves and growth lines, the spongy honeycomb interior of bone, leaf veins, ribbed corals, or the segmented symmetry of a trilobite. Fossils usually contrast with their matrix in color or density. Bone that has mineralized feels heavier than fresh bone and often shows a polished brown-black surface.
Not sure what you found? Try our identification guide →Frequently Asked Questions
Where can I find fossils in Maine?
Maine has 5 mapped sites where fossils have been reported. The best-known are Castine, Drainage ditch on the south side of Dudley Road, 70 m west of end of Turner Rd., and locality 1099L, Tweedy Road, on Presque Isle stream, Presque Township. Each listing on the map above includes GPS coordinates, access type, and what has been found there.
How many fossils sites are mapped in Maine?
We have 5 documented fossils sites in Maine, compiled from community submissions and published locality records and reviewed by the Rockhounding.org Research Team.
Is it legal to collect fossils in Maine?
Casual collecting is generally allowed on BLM and National Forest land for personal, non-commercial use — the standard BLM limit is 25 lbs per day plus one specimen. National parks, monuments, and many state parks prohibit collecting, and private land always requires the owner's permission. Check the site report for each location and verify current land status before you dig.
How do I identify fossil?
Look for biological structure the rock around it lacks: shell curves and growth lines, the spongy honeycomb interior of bone, leaf veins, ribbed corals, or the segmented symmetry of a trilobite. Fossils usually contrast with their matrix in color or density. Bone that has mineralized feels heavier than fresh bone and often shows a polished brown-black surface.
What should I bring to collect fossils?
The basics: a rock hammer, safety glasses, gloves, a bucket or padded bag for specimens, and a GPS app with the coordinates from this page. Add a spray bottle — wetting a stone makes color and banding far easier to judge in the field.
⚠️ Always verify current regulations, weather conditions, and access requirements before visiting any location. Information provided is based on community submissions and may not be current or accurate.
More to Find in Maine
Data: Paleobiology Database — reviewed and approved by the Rockhounding.org Research Team. Always verify current land status, regulations, and access before visiting any site.