Highest point in mainland Portugal, where D. João VI (1816-1826) ordered the erection of a stone tower, to complement the 2000m. From this point, the view reaches culminating points, from the Serra da Boa Viagem in Buarcos, to the Serra de Gredos in Spain, from the Marão in Trás-os-Montes to the Serra de Portalegre in the Alentejo.

In the 1950s, Air Force facilities were built, which housed the radar. They were deactivated in 1970. Currently, it is a sales center and information center.