A 109-acre reservoir south of Oldham and Furnace ponds that serves as a Class A public water supply for the Abington/Rockland Joint Water Works; no swimming or boating is allowed here.
What to expect
Managed by
Abington/Rockland Joint Water Works
Common questions
What rules should I know at Great Sandy Bottom Pond?
No swimming or boating; the pond is a protected drinking-water supply.