The Autódromo José Carlos Pace, better known as Interlagos, is a 4.309 km (2.677 mi) motorsport circuit located in the city of São Paulo. It was inaugurated on 12 May 1940 by federal intervener Adhemar de Barros. The traditional name of the circuit and the neighborhood itself comes from the fact that it is located in the area between two large artificial lakes, Guarapiranga and Billings, which were built in the early 20th century to supply the city with water and electricity. In 1985, the circuit was renamed in honor of Formula One driver José Carlos Pace, who died in a plane crash in 1977. Its facilities include a karting circuit named after Ayrton Senna. The circuit runs counterclockwise.