Castel Colonna was a comune (municipality) in the Province of Ancona in the Italian region Marche, located about 35 kilometres (22 mi) west of Ancona. It was called Tomba di Senigallia until 1921.[2]
The municipality of Castel Colonna was disbanded 1 January 2014[3] and united to Ripe and Monterado in the new municipality of Trecastelli.
Town hall of the new administration was set in former Ripe's offices in Piazza Castello.