Groton Town Forest Groton, MA
Parking is a little limited and a little difficult to find. Best way I can describe it is to turn onto Town Forest Rd off of Route 225 in Groton, MA. Follow Town Forest Rd all the way to the end. The road will turn into a partial dirt / paved road half way down. Keep going. Then, when it looks like you reached a dead end, as Town Forest Rd runs into Wharton Row, keep going. If you look quickly to your right you will see a tiny Groton Town Forest sign. Go a little further down the dirt road and you will be at the parking lot. Good job you found it!
If you have a GPS, set your destination to these coordinates: [42.597604, -71.604864].