Trenta is a valley in the Julian Alps in the northern part of the Goriška traditional region of Slovenia. The source of the river Soča and the settlements of Soča, Lepena and Trenta are located in Trenta. The Vršič pass connects the valley with the Upper Carniola to the east. The Soča flows generally south-west through the valley and then onwards to Bovec. The Soča (in Slovene) or Isonzo (in Italian) (other names Friulian: Lusinç, archaic German: Sontig, Latin: Aesontius or Sontius) is a 140 km long river that flows through western Slovenia and northeastern Italy. An Alpine river in character, its source lies in the Trenta Valley in the Julian Alps in Slovenia, at an elevation of around 1,100 metres. The river runs past Slovenia's highest peak, Triglav (2,864 m) before heading south past the towns of Bovec, Kobarid, Tolmin, Kanal ob Soči, Nova Gorica (where it is crossed by the Solkan Bridge) and Gorizia, entering the Adriatic Sea close to the Italian town of Monfalcone.