Map of New York State in 1779 At the time of the American Revolution, the organized counties of New York hewed to the Hudson River Valley and the Atlantic Ocean. Gloucester and Cumberland Counties were soon conceded to Vermont. By 1800, New York had created twenty new counties, primarily to the west of the original counties. [Map of New York State in 1779, based on Claude Joseph Sauthier, A Chorological Map of the Province of New York . . . (London, 1779).]

From Jim Crow New York: a documentary history of race and citizenship, 1777-1877 by David N. Gellman and David Quigley