What is now US 206 was part of several Lenape trails: the Shamong Trail, later known as the Cape May Road, ran from what is now Crosswicks to Cape May; a trail running from Trenton through Crosswicks; the Assanpink Trail, later known as the Old Dutch Road, running from Trenton north to New Brunswick; and the Great Minisink Trail, running from Navesink through Netcong to Minisink Village in modern-day Montague Township. In 1801, the Morris Turnpike was legislated to run from Elizabeth through Netcong to Culver's Gap. In 1804, the Union Turnpike was chartered to run from Morristown to the crossing at Dingman's Ferry in Montague Township. In 1814, the Deckerton and Newton Turnpike branched from Newton through Deckerton, now Sussex, to New York. The Crosswicks and Trenton Turnpike was chartered in 1854; the road is now locally known as Broad Street, and was included in U.S. 206 west of White Horse.