Autovía A-231
The Autovía A-231 is a local autovía in the community of Castile and León, Spain. It is 157 km long and runs from the Autovía A-66 at León to the Autovía BU-30 at Burgos, where it connects with the Autovía A-62 and the Autovía A-1. It was built between 1998 and 2003, and runs parallel to the Way of St. James and the N-120 road.