http://www.mass.gov/dfwele/dfw/habitat/maps/ponds/pdf/dfwbill.pdf
You should be able to use that map to find it
Access:
Access for boat and shore fishermen is provided by a town right-of-way on the pond's northern shore
in Morton Town Park (Little Pond). To reach the launching site, take the dirt road bordering the
southern shore of Little Pond. The ramp is sand and is most suitable for launching cartop boats and
canoes.