The Calore or Calore Lucano or Calore Salernitano is a river in southwestern Italy. It rises in the Monti Alburni (Monte Alburno) (5100 ft) in the Apennine Mountains and flows through the Parco Nazionale del Cilento e Vallo di Diano. It is a tributary of the Sele River. In ancient times it was known as Calor. For the Second World War frigate class, see River class frigate The Murray River in Australia A river is a large natural waterway. ... The Apennine Mountains (Italian: Appennini) stretch 1000 km from the north to the south of Italy along its east coast, forming the spine of the country. ...