. "Interstate 19 (I-19) is an intrastate Interstate Highway located entirely within the U.S. state of Arizona. I-19 travels from Nogales, roughly 300 feet (91 m) from the Mexican border, to Tucson, at I-10."@en . "I" . "19" . . . . "101840.0"^^ . . . "South" . "North" . .