Forty Caves is a 256-acre conservation area straddling Berlin and Clinton, co-owned by both towns and Sudbury Valley Trustees, with orange, yellow, blue and red marked trails winding through boulder fields, rocky outcrops and hemlock forest along North Brook. The 'caves' are gaps beneath tumbled boulders and leaning rock slabs.
What to expect
Parking
Not confirmed · unconfirmed
Hours
No posted gate hours.
Accessibility
Not accessible; natural, rocky, unpaved trail surfaces throughout
Birdwatching
Allowed year-round
Managed by
Sudbury Valley Trustees
978-443-5588 · WebsiteGetting in
Parking
Parking not sourced yet
Check the town or agency pages before you go.
What's here
On site
Info kiosk
Trailhead kiosks at both the Allen Road and Francis Street entrances
Common questions
Are there caves at Forty Caves?
Not literal caves. The name refers to gaps and hollows formed where tumbled boulders and rock slabs lean together on the orange trail near Allen Road.
Can I hunt at Forty Caves?
Sudbury Valley Trustees allows deer hunting here during the state's autumn deer season, but not on Sundays.
Is there an entry fee at Forty Caves Forest?
No, entry is free.
Is Forty Caves Forest wheelchair accessible?
Not accessible; natural, rocky, unpaved trail surfaces throughout
What rules should I know at Forty Caves Forest?
Hunters and other visitors must comply with Massachusetts state hunting regulations during the autumn deer season since SVT permits deer hunting on this property. Hunting is not permitted on Sundays even during the allowed season.