Missouri Secondary State Route A St. Charles County
Missouri Secondary State Route A is a north-south higway in Northwestern St. Charles County. It runs from Interstate 70 to U.S. Rt. 61. MO Sec St Rt A passes through the following towns in St. Charles County. Lake St. Louis Wentzville MO Sec St Rt A is not multi-plexed in St. Charles County. MO Sec St Rt A intersects the following highways in St. Charles County. Interstate 70, at Lake St. Louis. U.S. Rt. 61, at Wentsville.