title: Hypogenic caves in Western Umbria (Central Italy)
abstract: Three karst areas located in the western sector of the Umbria Region (Central Italy) are here described: one northof Perugia, and the others to the south, close to Todi. All the end members of karst processes, from solution caves to Quaternary travertine deposits, are present in this region, associated withCO2 and H2S emissions. The geological and hydrogeological aspects of the main karst systems are analyzed and their underground morphologies and patterns taken into account. Caves have differen
journal: Acta Carsologica