Colleferro

Sister cities

• Colmenar Viejo

History

Appian and Plutarch describe a decisive battle in the Civil War against Gaius Marius the Younger, which took place in 82 BC at Colleferro, concluded in favor of Sulla. At the end of the siege, Marius committed suicide. At Colleferro, Italian patriot Enrico Toti, on 27 March 1908, had his left leg crushed. The train was stopped at the station to be joined by the Colleferro train. Toti was lubricating the engine of the locomotive and, when the locomotive moved, he slipped causing his left leg to be trapped and crushed by the gears. The development of the town began as early as 1912 with the conversion of a long-disused sugar factory (the Valsacco factory) to a gunpowder and explosive factory. Initially, the town developed away from where the center is today; the first few buildings (including the Church of St. Joachim) were built within the territory of the nearby town of Valmontone, near the train station that was then called "Segni-Paliano", and was renamed "Colleferro-Segni-Paliano Station" after the birth of the town. The engineer Leopoldo Parodi Delfino (former senator and son of the founder of the National Bank, then Bank of Italy) and Senator Giovanni Bombrini founded the Bombrini Parodi Delfino (BPD) gunpowder and explosives factory. Nearby, a new "BPD Village" was created, and factory workers and their families from throughout Italy moved into them. Later, a cement factory opened (the "Lime & Cement Segni", subsequently acquired by Italcementi), using materials quarried from the nearby town of Segni. Colleferro continued growing throughout the 1920s and 1930s with still within the municipality of Valmontone. In 1935 Colleferro was incorporated as a new city. Later, Colleferro incorporated portions of the neighboring municipalities of Segni and Paliano. On…

Geography

Colleferro is located near the Sacco River in the Sacco Valley.

Most-observed species

• Hooded Crow

  Corvus cornix Linnaeus, 1758 · Aves
  177
• Eurasian Blackbird

  Turdus merula Linnaeus, 1758 · Aves
  137
• Asian tiger mosquito, Forest day mosquito

  Aedes albopictus (Skuse, 1894) · Insecta
  110
• Common Chaffinch

  Fringilla coelebs Linnaeus, 1758 · Aves
  105
• European Robin

  Erithacus rubecula (Linnaeus, 1758) · Aves
  104
• Great Tit

  Parus major Linnaeus, 1758 · Aves
  99
• Common Buzzard

  Buteo buteo (Linnaeus, 1758) · Aves
  93
• Tree-of-Heaven

  Ailanthus altissima (Mill.) Swingle · Magnoliopsida
  89

Most recent

• M 4.4 — 2026-07-24
  5 km WNW of Pizzone, Italy
• M 2.7 — 2025-05-08
  1 km NNE of Montecompatri, Italy
• M 4.1 — 2024-12-09
  3 km SSE of Formia, Italy
• M 3.1 — 2020-05-11
  7 km NNW of Rome, Italy
• M 4.6 — 2019-11-07
  2 km SW of Villavallelonga, Italy
• M 3.4 — 2019-06-23
  1 km WSW of Gallicano nel Lazio, Italy