On Saturday September 18th the Gibbet Hill Castle Ruins (a.k.a. Bancroft Castle) will be closed to public hikers from 9:45am – 10:45am AND 4:45pm – 5:45pm. During these time frames, hikers on trails will be directed around Castle Ruins by our staff and posted signage. The Castle Ruins will be open during the rest of the day.
(978) 448-1100
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173 Main St.
Groton, MA 01450
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