BUSN. U.S. Federal Route 6 in Lake County is signed very poorly. It runs from U.S. Rt. 41 in Hammond to U.S. Rt. 6/IN St Rt 51 in Hobart. BUSN. U.S. Rt. 6 passes through the following towns in Lake County. Highland Griffith Gary Lake Station New Chicago Hobart BUSN. U.S. Rt. 6 is not multi-plexed in Lake County. BUSN. U.S. Rt. 6 intersects the following highways in Lake County. U.S. Rt. 41, at Highland. Indiana State Route 912, at Griffith. Indiana State Route 55, at Gary.