Zestafoni or Zestaponi (correct pronunciation - Zestaponi) (Georgian: ზესტაფონი) is the administrative center of Zestafoni District in Western Georgia. Zestafoni is the center of an ancient, historical part of Georgia - Margveti, which is a part of Imereti province. Zestafoni is the center of Margveti's Eparchy of the Georgian Orthodox Church. Zestafoni is situated in the furthest east of the Kolkheti Plateau, and is built on both banks of the river Kvirila. It is an important industrial center, with a large ferro-alloy plant processing manganese ore from nearby Chiatura. Zestafoni is in the Kolkheti lowlands, a semi-tropical region with relatively cold winters averaging −4 °C (25 °F) in January and hot summers averaging 24 °C (75 °F) in August. The surrounding countryside is a wine-growing region.