Keht-hanne, Heckewelder--_Kittan,_ Zeisberger--"The principal or greatest stream," _i. e._ of the country through which it passes, was the generic name of the Delaware River, and _Lenapewihittuck,_ "The river or stream of the Lenape," its specific name, more especially referring to the stream where its waters are affected by tidal currents. In the Minisink country it was known as _Minisinks River,_ or "River of the Minisinks." At the Lehigh junction the main stream was called the East Branch and the Lehigh the West Branch (Sauthier's map), but above that point the main stream was known as the West Branch to its head in Utsyantha [FN-1] Lake, on the north-east line of Delaware County, N. Y., where it was known as the Mohawk's Branch. It forms the southwestern boundary of the State from nearly its head to Port Jervis, Orange County, Where it enters or becomes the western boundary of New Jersey. At Hancock, Delaware County, it receives the waters of what was called by the Indians the _Paghkataghan,_ and by the English the East Branch. The West Branch was here known to the Indians as the _Namaes-sipu_ and its equivalent _Lamas-sépos,_ or "Fish River," by Europeans, Fish-Kill, "Because," says an affidavit of 1785, "There was great numbers of _Maskunamack_ (that is Bass) and _Guwam_ (that is Shad) [FN-2] went up that branch at Shokan, and but few or none went up the East [Paghkataghan] Branch." [FN-3] In the course of time the East or Paghkataghan [FN-4] Branch became known as the Papagonck from a place so called. The lower part of the stream was called by the Dutch the "Zuiden River," or South River. In early days the main or West Branch was navigable by flat-boats from Cochecton Falls to Philadelphia and Wilmington. Smith, in his "History of New Jersey," wrote: "From Cochecton to Trenton are fourteen considerable rifts, yet all passable in the long flat boats used in the navigation of these parts, some carrying 500 or 600 bushels of wheat." _Meggeckesson_ (Col. Hist. N. Y., xii, 225) was the name of what are now known as Trenton Falls, or rapids. It means, briefly, "Strong water." Heckewelder's _Maskek-it-ong_ and his interpretation of it, "Strong falls at," are wrong, the name which he quoted being that of a swamp in the vicinity of the falls, as noted in Col. Hist. N. Y., and as shown by the name itself.