Piansano
Piansano is a comune in the Province of Viterbo in the Italian region Latium, located about northwest of Rome and about northwest of Viterbo. As of 31 December 2004, it had a population of 2,232 and an area of.
Piansano borders the following municipalities: Arlena di Castro, Capodimonte, Cellere, Tuscania, Valentano.
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