Lillooet was originally named Cayoosh Flat, a name that was felt to be unsavoury by the residents of the town at the time of its incorporation in 1860. Since it was at the end of the Lillooet Trail, aka the Douglas Road or Lakes Route, and the Lil'wat native people farther southwest along that route spoke the same language as the native bands near town, the governor was petitioned to change the name to Lillooet, with permission for use of the name granted by the chiefs of the Lower St'at'imc at Mount Currie (Lil'wat) and agreed to by the bands of what is now the Upper St'at'imc.