 I-70, which travels in a generally east-northeast direction across the state parallel to and sometimes concurrent with U.S. Route 40 (US 40), connects St. Louis and the Metro East region of Illinois with the Indiana cities of Terre Haute and Indianapolis, as well as many small towns along the northern edge of Southern Illinois and the southern tier of the Central Illinois region.Within Metro East, I-70 has interchanges with I-64 in East St. Louis and I-55 near Troy.I-70 also has interchanges with the two Interstates that form St. Louis's beltway