| Castle of Moinhos | |
|---|---|
Castelo dos Moinhos | |
| Terceira, Central, Azores in Portugal | |
 The pinnacle of the Alto da Memoria situated on the hilltop battlements of what was once the Fort of São Cristóvão | |
  Castle of Moinhos Location of the Castle/Fort ruins within the municipality of Angra do Heroísmo | |
| Coordinates | 38°39′33.23″N 27°13′10.38″W / 38.6592306°N 27.2195500°W |
| Type | Castle |
| Site information | |
| Owner | Portuguese Republic |
| Operator | Secretaria Regional da Cultura |
| Open to the public | Public |
| Site history | |
| Built | 1461 |
| Materials | Basalt, Tile |
The Castle of Moinhos, officially known as the Castle of São Cristóvão, or Castle/Fort of São Luís is the name of the ruins of 16th-century fortification in city of Angra, on the Portuguese island of Terceira in the archipelago of the Azores. It is primarily known as the Castle of Moinhos, owing to the popular name given to the site for the number of mills that dotted the hilltop, on which the castle was erected.