Emerald river, Soča, Slovenia:

The Soča or Isonzo is a 138 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 northwestern Slovenia, at an elevation of 876 metres.The river runs past the towns of Bovec, Kobarid, Tolmin, Kanal ob Soči, Nova Gorica, and Gorizia, entering the Adriatic Sea close to the Italian town of Monfalcone.The river was recorded in antiquity as Aesontius, Sontius, and Isontius. Later attestations include super Sontium, a flumine Isontio, in Lisonçum, an die Ysnicz, and an der Snicz. The Slovene name Soča is derived from the form *Sǫťa, which was borrowed from Latin Sontius. In turn, this is probably based on the substrate name *Aisontia, presumably derived from the PIE root *Hei̯s- 'swift, rushing', referring to a quickly moving river. Another possible origin is the pre-Romance root *ai̯s- 'water, river'.

Source:

Picture:Link:

Wikipedeia:Link: