Sankhenak and Saukhenak are record forms of the name given as that of Roelof Jansen's Kil (Doc. Hist. N. Y., iii, 612; French's Gazetteer.) _Sauk-hannek_ would describe the mouth or outlet of the stream, and _Sank-hannek_ would read "Flint-stone creek." Sauk is probably correct. The purchase included land on both sides of the creek from "A small kil opposite the Katskil," on the north, called _Wachhanekassik._ "to a place opposite Sagertyes Kil, called Saaskahampka." The stream is now known as Livingston's Creek. [FN] * * * * * [FN] The creek was the boundmark between the Wappingers and the Mahicans. (See Wahamanessing.) Wachanekassik, Indian deed to Livingston, 1683; _Waghankasick,_ patent to Van Rensselaer, 1649, and other orthographies, is written as the name of a small creek which marked the place of beginning of the northwest boundmark of the Livingston Patent and the place of ending of the southwest boundmark of the prior Van Rensselaer Patent of Claverack. The latter reads; ". . . And so along the said Hudson River southward to the south side of Vastrix Island, by a creek called Waghankasick, thence easterly to Wawanaquasik," etc. The deed to Livingston conveyed lands "On both sides of Roelof Jansen's Kill, [FN-1] called by the Indians Sauk-henak," including lands "along the river's bank from said Roeloff Jansen's Kill, northwards up, to a small stream opposite Catskill named Wachanekasseck, and southwards down the river to opposite the Sagertjes Kill, called by the Indians Saaskahampka." In the Livingston Patent of 1684: "Eighteen hundred acres of woodland lying between a small creek or kill lying over against Catskill called Wachanakasseck and a place called Suaskahampka," and in patent of 1686: "On the north by a line to be drawn from a certain creek or kill over against the south side of Vastrix Island in Hudson's River, called Wachankasigh," to which Surveyor John Beatty added more precisely on his map of survey in 1715: "Beginning on the east side of Hudson's River _southward_ from Vastrix Island, _at a place_ where a certain run of water watereth out into Hudson's River, called in ye Indian tongue, Wachankassik." The "run of water" is not marked on Beatty's map, nor on the map of survey of the patent in 1798, but it is marked, from existence or presumed existence, on a map of the boundary line between New York and Massachusetts and seems to have been one of the several small streams that flow down the bluff from the surface, apparently about two miles and a half north of Roelof Jansen's Kill, in the vicinity of the old Oak Hill station [FN-2] on the H. R. R., later known as Catskill station. While referred to in connection with the boundmark to identify its location, its precise location seems to have been lost. In early days boundmarks were frequently designated in general terms by some well known place. Hence we find Catskill spoken