Tre Colli Frazione in Tuscany, Italy From Wikipedia, the free encyclopedia Tre Colli is a village in Tuscany, central Italy, administratively a frazione of the comune of Calci, province of Pisa.[1] CountryItalyElevation225 m (738 ft)Time zoneUTC+1 (CET)Postal code56011Quick facts Country, Region ...Tre ColliFrazioneTre ColliLocation of Tre Colli in ItalyCoordinates: 43°44′39″N 10°31′53″ECountryItalyRegion TuscanyProvincePisa (PI)ComuneCalciElevation225 m (738 ft)Population • Total51Time zoneUTC+1 (CET) • Summer (DST)UTC+2 (CEST)Postal code56011Dialing code(+39) 050Close Tre Colli is about 14 km from Pisa and 3 km from Calci. References [1]Caciagli, Giuseppe (1972). Pisa e la sua provincia. Vol. 2. Pisa: Colombo Cursi Editore. pp. 146–147. Bibliography Caciagli, Giuseppe (1972). Pisa e la sua provincia. Vol. 2. Pisa: Colombo Cursi Editore. Wikimedia Commons has media related to Tre Colli. This Province of Pisa location article is a stub. You can help Wikipedia by adding missing information.vte Related Articles