A roughly 53-acre lake straddling the Plainville/Foxborough line, state-listed as a Great Pond. Most of the shoreline is privately owned residential frontage; the town holds a 21-acre, land-locked conservation parcel abutting the lake with no developed public access.
What to expect
Dogs
On conservation land, dogs must be kept under the owner's control at all times
Hours
Dawn to dusk on the town's conservation parcel; parking after dusk prohibited
Managed by
Plainville Conservation Commission
508-695-3010 ext. 493 · WebsiteWhat's here
Not here
No restrooms
None documented
Common questions
Is there a public beach at Lake Mirimichi?
The lake's shoreline is mostly private residential frontage and the town's own conservation parcel there has no developed access.
Can you eat fish from Lake Mirimichi?
A 2024 state advisory recommends sensitive populations avoid eating any fish from the lake and limits general consumption to one meal per year because of PFAS levels found in 2022 sampling.
Can I bring my dog to Lake Mirimichi?
On conservation land, dogs must be kept under the owner's control at all times