The reservation used by descendants of the Nipmuck Indians contains a lake of what size?
Chaubunagungamaug Reservation:  The reservation is used by the descendants of the Nipmuck Indians of the previous reservation, c. 1682-1869, that existed in the same area, who now identify as the Webster/Dudley Band of the Chaubunagungamaug Nipmuck.
i don't know