Scoglio Formiche di Grosseto Lighthouse Italian: Faro delle Formiche di Grosseto is an active lighthouse established on the largest of three skerries located 9 nautical miles (17 km; 10 mi) south west of Marina di Grosseto.

The lighthouse and the keeper’s house were built in 1901 and restored in 1919 by the Regia Marina.

The lighthouse consists of a white building and a cylindrical tower, with balcony and lantern, 12 metres (39 ft) high built on the front side.

The power is supplied by a solar panel and the lantern emits one single white flash every 6 seconds visible up to 11 nautical miles (20 km; 13 mi).

The lighthouse is fully automated and operated by Marina Militare identified by the code number 2136 E.F.[1]