A map of the improved part of the Province of Pennsilvania in America1705. "Begun by Wil. Penn, Proprietary & Governour thereof anno 1681." Shows the three original counties of Pennsylvania: Chester, Philadelphia and Bucks. It is oriented with the Delaware River along the bottom of the map and extends from New Castle in what is now the state of Delaware in the lower left to the great bend in the Delaware River by present-day Trenton, New Jersey, in the lower right. William Penn is believed to have requested the map from his surveyor general as early as 1684.