The Chaubunagungamaug Reservation refres to the small parcel of land located in the town of Thompson, Connecticut, close to the border with the town of Webster, Massachusetts and within the bounds of Lake Chaubunagungamaug (Webster Lake) to the east and the French River to the west. 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. Together with the Hassanamisco Nipmuc, both have received state recognition under the Massachusetts Commission on Indian Affairs.