About 1828, Delaware Indians laid out the Double File Trail, a trace wide enough for two horsemen to ride side by side. They carved this route as they migrated ahead of expanding white settlements, moving from what they called "The Redlands" in east Texas to Mexico near present Nuevo Laredo. Of the 200 to 250 families reported in east Texas in the 1820s, only about 150 remained after the move. Early sites in Williamson County were settled where this trail crossed waterways, and Texas Rangers and the Sante Fe Expedition also traveled the track.