The Autostrada A6 or La Verdemare ("Green sea motorway") is an autostrada (Italian for "motorway") 124.3 kilometres (77.2 mi) long in Italy located in the regions of Piedmont and Liguria which connects Turin, the southernmost area of Piedmont, especially the province of Cuneo, to the west coast of Liguria and the city of Savona.

The track began three kilometers (approximately 1.86 miles) from the Carmagnola junction, with the terminal square being just before the service area.

[5] The single roadway of the highway was considered very dangerous from marker 13 to 110 km, as the middle lane was used regularly for passing by both directions.

[6][7][8] At one point in 1980, the number of fatal accidents was so high, judicial authorities ordered the closure of the highway in the Ceva – Altare section towards Savona.

[12] The system develops through landscapes and open territories, such as the border between Piedmont and Liguria, most notably the Savona – Altare Apennine stretch.

The A6 also passes the Colle di Cadibona at 435m, a watershed between the Ligurian Apennines and the Po Valley in 14 km with an uninterrupted route of tunnels and viaducts and, exclusive to Italy, a helical curve in the south roadway.