Soča in the context of Nival-pluvial regime

Nova Gorica (pronounced [ˈnɔ̀ːʋa ɡɔˈɾìːtsa] ) is a town in western Slovenia, on the border with Italy. It is the seat of the Municipality of Nova Gorica. Nova Gorica is a planned town, built according to the principles of modernist architecture after 1947, when the Paris Peace Treaty established a new border between Yugoslavia and Italy, leaving nearby Gorizia outside the borders of Yugoslavia and thus cutting off the Soča Valley, the Vipava Valley, the Gorizia Hills and the northwestern Karst Plateau from their traditional regional urban centre. It is the European Capital of Culture in 2025. Since 1948, Nova Gorica has replaced Gorizia as the principal urban center of the Gorizia region (Slovene: Goriška), as the northern part of the Slovenian Littoral has been traditionally called. Since May 2011, Nova Gorica has been joined with Gorizia and Šempeter-Vrtojba in a common trans-border metropolitan zone, administered by a joint administration board.

The Soča dialect (Slovene: obsoško narečje [ɔpˈsóːʃkɔ naˈɾéːt͡ʃjɛ]) is a Slovene dialect spoken in upper Soča Valley. It is one of the most archaic Slovene dialects, together with the Natisone Valley, Torre Valley, and Rosen Valley dialects. It borders the Karst dialect to the south, Natisone Valley dialect to the southwest, Torre Valley and Resian dialects to the west, Fiulian and Carinthian Bavarian to the northwest, Gail Valley dialect to the north, Upper Carniolan dialect to the east, and Tolmin dialect to the southeast. The dialect belongs to the Littoral dialect group, and it evolved from Soča–Idrija dialect base.

Sveta Gora (pronounced [ˈsʋeːta ˈɡɔːɾa]; Italian: Monte Santo di Gorizia) is a settlement in western Slovenia in the Municipality of Nova Gorica. It encompasses Holy Mount (Slovene: Sveta gora), above the Soča Valley and southwest of the Banjšice Plateau.

Triglav National Park (TNP; Slovene: Triglavski narodni park, TNP) is the only national park in Slovenia. It was established in its modern form in 1981 and is located in the northwestern part of the country, respectively the southeastern part of the Alpine massif. Mount Triglav, the highest peak of the Julian Alps, stands almost in the middle of the national park. From there the valleys spread out radially, supplying water to two large river systems with their sources in the Julian Alps: the Soča and the Sava, flowing to the Adriatic and Black Sea, respectively.

Goriška (English: the Gorizia Region) is a historical region in western Slovenia on the border with Italy. It comprises the northern part of the wider traditional region of the Slovenian Littoral (Primorska). The name Goriška is an adjective referring to the city of Gorizia, its historical and cultural centre.

The Gorizia Hills (Italian: Collio Goriziano or Collio; Slovene: Goriška brda or Brda; Friulian: Cuei) is a hilly microregion in western Slovenia and northeastern Italy. It lies on the right bank of the Soča (Isonzo) River, north of the Italian town of Gorizia, after which it is named. The region covers around 120 km (46 sq mi) and has about 7,000 inhabitants, mostly ethnic Slovenes, with a small number of Friulian speakers in its westernmost part (in the municipality of Dolegna del Collio).

Today, the majority of the region is in Slovenia, with around 60% of the territory and 80% of the inhabitants. The Slovene part of the Gorizia Hills lies entirely in the Municipality of Brda. The Italian part lies within the boundaries of the province of Gorizia, and it is divided among the municipalities of San Floriano del Collio, Cormons, and Dolegna del Collio.

The Municipality of Kobarid (pronounced [kɔbaˈɾiːt]; Slovene: Občina Kobarid; Italian: Comune di Caporetto) is a municipality in the Upper Soča Valley in western Slovenia, near the Italian border. The seat of the municipality is the town of Kobarid.

The municipality was established on 3 October 1994, when the former larger Municipality of Tolmin was subdivided into the municipalities of Bovec, Kobarid, and Tolmin. It borders Italy.

The Tolmin dialect (Slovene: tolminsko narečje, tolminščina) is a Slovene dialect in the Rovte dialect group. It is spoken in the watersheds of the Bača and lower Idrijca rivers, as well as the reaches of the Soča River in that area, bounded on the west by a line west of Tolmin and Most na Soči. Other settlements in the dialect area include Grahovo ob Bači.

Kanal (pronounced [kaˈnaːl] or [kaˈnaːu̯]; Italian: Canale, German: Kanalburg), frequently referred to as Kanal ob Soči ("Kanal on the Soča"; pronounced [kaˈnaːl ɔp ˈsoːtʃi] or [kaˈnaːu̯ ɔp ˈsoːtʃi]; Italian: Canale d'Isonzo), is a settlement mostly on the left bank of the Soča River in the Slovene Littoral, the traditional region in southwestern Slovenia. It is the seat of the Municipality of Kanal ob Soči. It is an important crossing point over the Soča. At its eastern border, on the left bank of the Soča, runs the Bohinj Railway, the railway track linking the Central Europe and the Mediterranean.