Ghioroc is a commune in Arad County, Romania. Ghioroc commune is situated in the contact zone of Zărand Mountains and Arad Plateau, …Ghioroc is a commune in Arad County, Romania. Ghioroc commune is situated in the contact zone of Zărand Mountains and Arad Plateau, on the Matca channel, and it stretches over 4,890 ha. It is composed of three villages: Cuvin, Ghioroc and Miniș.