Mount Soracte. Monte Soratte is a mountain ridge in the Metropolitan City of Rome, central Italy. It is a narrow, isolated limestone ridge with a length of 5.5 km and six peaks. Located some 10 km south east of Civita Castellana and c. 45 km north of Rome, it is the sole notable ridge in the Tiber Valley. The nearest settlement is the village of Sant'Oreste. Saint Orestes or Edistus, after whom the settlement is named, is said to have been martyred near Monte Soratte. The highest summit is 691 m above sea-level. The ridge is part of a 444-hectare Natural Reserve housing a variety of vegetation and fauna. It is also characterized by the so-called Meri, pits which can be up to 115 metres deep. The area was used by the ancient Italic peoples of the area and the Etruscan civilization for the cult of the God Soranus. Mount Soratte was mentioned by Horace, and Virgil, who stated that Apollo was its guardian deity. The hermitage of St. Sylvester is just below the summit. According to a legend, its church was founded by Pope Sylvester, who had taken refuge there to escape Constantine's persecution. The church houses 14th-and 15th-century frescoes. Another four hermitages are on the ridge. The church of Santa Maria delle Grazie was built in 1835 over a pre-existing 16th-century edifice and houses a once highly venerated image of the Madonna. Johann Wolfgang von Goethe mentioned the peak in Italian Journey, his diary of his travels through Italy from 1786-1788. He wrote that Soracte stands out by itself in magnificent solitude. Probably this mountain is made of limestone and belongs to the Apennines. During World War II, after the 8 September 1943 Frascati air raid, Field Marshal Albert Kesselring moved his headquarters from Frascati to the bunkers in Monte Soratte.