Cabo San Jorge Lighthouse, Lighthouse in Golfo San Jorge, Chubut, Argentina

The Faro San Jorge is a square masonry tower, not cylindrical, with a gallery and a black lantern, standing 27 meters tall on Cabo San Jorge in the Golfo San Jorge. Its focal height is 78 meters above sea level, and it emits four white flashes of one second each, separated by five-second intervals, over a 32-second period. The tower is painted white, and its shape resembles Genoa's Lanterna.

In 1923 the Argentine Navy studied replacing the Comodoro Rivadavia lighthouse on Cerro Chenque, whose light was weak and blended with town and oil-field lights. President Torcuato de Alvear decreed a 24-hectare reserve at Cabo San Jorge in January 1924. YPF donated 25,000 pesos, a third of the cost, and Astra supplied 160,000 bricks. The light entered service on 9 March 1925, powered by acetylene, and was connected to the urban grid on 2 March 1988.

The lighthouse takes its name from the Golfo San Jorge and the cape where it stands, so the saint's name reached the site indirectly. The Argentine Senate called it a historic heritage asset where recreation and tourism meet, and its story is kept at Comodoro Rivadavia's Museo Ferroportuario. It is regarded as a symbol of history and tradition in Comodoro since 1925.

The light shows four white flashes of one second each, separated by five-second gaps, over a 32-second cycle, with a focal height of 78 m and a range of 14 nautical miles. The tower is reached by road north of Comodoro Rivadavia, but signage is scarce and several tracks branch off, so approach with your own transport. The site belongs to the Argentine Navy and has no visitor services.

The lantern sits at a focal height of 78 metres, but the tower itself measures 27 metres; its square masonry shape echoes Genoa's Lanterna, the lighthouse of Christopher Columbus's childhood, whose keeper was his uncle Antonio Colombo.