Fort of Alto do Duque

Fort of Alto do Duque
Forte do Alto do Duque
Lisbon District,
Near Lisbon in Portugal
Coordinates38°42′14″N 9°13′20″W / 38.703805°N 9.222213°W / 38.703805; -9.222213
Site information
OwnerPortuguese government
Open to
the public		No
ConditionRestored
Site history
Built1875-90
Garrison information
OccupantsPortuguese Public Security Police

The Fort of Alto do Duque is located 75 meters above sea level at the southwestern tip of the Monsanto Forest Park, in the parish of Ajuda, in Portugal's capital of Lisbon. Built at the end of the 19th century as part of Lisbon's Campo Entrincheirado (Entrenched Field) defensive ring around the city, with the intention that it, together with the Fort of Bom Sucesso, would defend against attacks along the River Tagus, the fort is now headquarters of the criminal investigation division of the Polícia de Segurança Pública (PSP) in Lisbon.[1][2][3]

  1. ^ "CEL - Forte do Alto do Duque". Monumentos de História. Retrieved 24 November 2020.
  2. ^ "Forte do Alto do Duque". Fortalezas.org. Retrieved 24 November 2020.
  3. ^ "Forte do Alto do Duque". Patrimonio Cultural. Retrieved 24 November 2020.