Mortgage Dallas Tx Dallas Event Venues Couples, and their families, on the tour are shuttled to 10 country clubs across Dallas to get a feel for what their wedding could look like The tour kicks off Saturday, Feb. 16 at Brookhaven Country.How Old Is Dallas? DALLAS, TEXAS.Dallas is on the Trinity River in the center of Dallas County in North Central Texas. It is crossed by interstate highways 20, 30, 35, and 45. The city was founded by John Neely Bryan, who settled on the east bank of the Trinity near a natural ford in November 1841.Bryan had picked the best spot for a trading post to serve the population migrating into the region.