From Ancestry.com Wiki
Warwick is a town in Massachusetts. It was formed in 1763 and was previously called (Roxbury Canada Plantation). It can be found in Franklin county and is a part of the Greenfield (Deerfield) registry of deed district. For more information, contact the county at 12 Athol Rd., Warwick 01364. On the attached map, Warwick is shown as 8 in Franklin county.
For information about the state of Massachusetts see Massachusetts Family History Research.