Indiana State Route 66 is a north-south highway in Crawford County. It runs from the Crawford/Perry County Line, near Sulphur. to the Crawford/Washington County Line, near Hardinsburg. IN St Rt 66 intersects the following highways in Crawford County. Sulphur Beechwood Leavenworth Carefree Pilot Knob Marengo Milltown IN St Rt 66 is multi-plexed in Crawford County. Indiana State Route 62, from Sulphur to Leavenworth. Indiana State Route 64, from Marengo to Milltown. IN St Rt 66 intersects the following highways in Crawford County. Indiana State Route 66, at Sulphur. Indiana State Route 237, at Sulphur. Indiana State Route 62, at Leavenworth. Interstate 64, near carefree. Indiana State Route 64, at Marengo. Indiana State Route 64, at Milltown.
