Dolegna del Collio is a comune in the Regional decentralization entity of Gorizia in the Italian region of Friuli-Venezia Giulia, located about 50 …Dolegna del Collio is a comune in the Regional decentralization entity of Gorizia in the Italian region of Friuli-Venezia Giulia, located about 50 kilometres northwest of Trieste and about 15 kilometres northwest of Gorizia, on the border with Slovenia. As of 31 December 2004, it had a population of 419 and an area of 12.5 square kilometres.