This primary source comes from the Records of the National Archives and Records Administration.
Full Citation: Map of the British Colonies in the Year 1765; 1765; Reference Maps and Drawings, 1934–1989; Records of the National Archives and Records Administration, Record Group 64; National Archives at College Park, College Park, MD. [Online Version, https://docsteach.org/documents/document/map-british-colonies-1765, June 21, 2025]