Sacondaga, quoted as the name of the west branch of the Hudson, is not the name of the stream but of its mouth or outlet at Warrensburgh, Warren County. It is from Mohawk generic _Swe'ken,_ the equivalent of Lenape _Sacon_ (Zeisb.), meaning "Outlet," or "Mouth of a river," "Pouring out," and _-daga,_ a softened form of _-take,_ "At the," the composition meaning, literally, "At the outlet" or mouth of a river. (Hale.) _Ti-osar-onda,_ met in connection with the stream, means "Branch" or "Tributory stream." (Hewitt.) The reference may have been to the stream as a branch of the Hudson, or to some other stream. The stream comes down from small lakes and streams in Lewis and Hamilton counties, and is the principal northwestern affluent of the Hudson. Scharon, Scarron, Schroon, orthographies of the name now conferred on a lake and its outlet, and on a mountain range and a town in Essex County, is said to have been originally given to the lake by French officers in honor of the widow Scarron, the celebrated Madam Maintenon of the reign of Louis XVI. (Watson.) The present form, _Schroon,_ is quite modern. On Sauthier's map the orthography is Scaron. The lake is about ten miles long and forms a reservoir of waters flowing from a number of lakes and springs in the Adirondacks. Its outlet unites with the Hudson on the east side at Warrensburgh, Warren County, and has been known for many years as the East Branch of Hudson's River. The Mohawk-Iroquoian name of the stream at one place is of record _At-a-te'ton,_ from _Ganawate^cton_ (Bruyas), meaning "Rapid river," "Swift current." (J. B. N. Hewitt.) A little valley at the junction of the stream with the Hudson at Warrensburgh, dignified by the name of "Indian Pass," bears the record name of _Teohoken,_ from Iroquois generic _De-ya-oken,_ meaning "Where it forks," or "Where the stream forks or enters the Hudson." (J. B. N. Hewitt.) The little valley is described as "a picture of beauty and repose in strong contrast with the rugged hills around." (Lossing.)