About Forte Príncipe da Beira
Fortifications, Historic, Interesting Places, Castles
Principe da Beira (Forte Principe de Rivera) is a fortification on the lower part of the Guaporé River close to its confluence with the Mamoré River in the Brazilian state of Rondônia.
The fort was built from 1776 to 1783 and is one of only two forts that the Portuguese Empire built in the inner regions of Brazil. The Portuguese built it to secure their border against the expanding Spanish Empire, which controlled the areas to the southwest of Rondônia. The military use of the fort was abandoned in 1889.
Source From:
Wikipedia
Microrregião Guajara-Mirim, RO, Brasil